Wine Yeast - Alcoholic Fermentation:
When we add wine yeast to our must, the yeast consume the sugars and create alcohol and CO2 as by-products. This transformation of sugar into alcohol by the wine yeast is what turns the juice/must into wine and is the basis of all winemaking. Each wine yeast has its own unique set of flavors and aromas, so take a look at our Yeast & Grape Pairing Manual to help find the one(s!) that are best suited to your winemaking style. Remember, it's the wine yeast who are actually making the wine, we as winemakers just provide the introduction and handle the details!
Malolactic Bacteria - Malolactic Fermentation:
In addition to wine yeast, there is another organism that we can use to round-out and add complexity to our wines: malolactic bacteria. Malolactic bacteria consume malic acid (naturally present in the grape) and convert it to lactic acid. Lactic acid is roughly half as strong as malic acid, so when it reduces/replaces the malic acid in the wine the pH goes up (and the TA goes down). The result is that the wine becomes less tart, softer and fuller than it was before the malolactic fermentation. Depending on the grape varietal and the style of wine we are looking to make, this may or may not be a good thing. As a general guideline most red wines undergo a complete malolactic fermentation and benefit from doing so. White wines can vary from full (barrel-fermented Chardonnay), partial, or no malolactic fermentation ("New-World" Sauvignon Blanc). There is no "right" choice - it just depends on the style of wine your are making. Complete information on alcoholic and malolactic fermentations can be found in our Red Winemaking and White Winemaking Manuals!
Wine Yeast, Malolactic Bacteria & Additives
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Lallemand Assmanshausen (AMH) | Dry Wine Yeast
Assmanshausen (AMH) is the ideal choice for winemakers seeking to produce elegant, terroir-driven red wines with aromatic complexity and structured tannins Whether perfecting a Pinot Noir, elevating the freshness of Gamay, or crafting a refined Burgundy-style blend, AMH consistently delivers elegance, balance, and nuanced flavor in every bottle Enhanced aromatics and structured tannins for elegant red wines Assmanshausen (AMH) is a specialty wine yeast strain prized for its ability to enhance aromatic complexity and develop structured tannins in cool-climate red wines. Originally selected from the Assmanshausen region in Germany, this strain is ideal for crafting elegant, age-worthy wines that benefit from extended fermentation and maceration periods. Its steady, controlled fermentation allows for nuanced expression of delicate fruit and spice characteristics. Enhanced Aromatics: Elevates subtle cherry, cranberry, and spice notes, ideal for cool-climate reds. Structured Tannin Development: Promotes refined tannin integration, enhancing mouthfeel and ageability. Alcohol Tolerance: Effective up to 14% ABV, suitable for balanced red wine styles. Temperature Range: Performs optimally between 59°F (15°C) and 82°F (28°C), allowing for slow, controlled fermentations. Low Flocculation: Extended suspension during fermentation aids in complex flavor development. Minimal SO₂ Production: Preserves clean aromatics and avoids off-flavors. Applications: Pinot Noir: Enhances delicate fruit and floral notes while promoting smooth tannin development. Gamay: Elevates fresh berry expressions and accentuates vibrant acidity. Cool-Climate Reds: Ideal for crafting structured, elegant wines that express terroir. Blended Reds: Perfect for Burgundy-style blends and Beaujolais Nouveau. Flavor Profile: Red Fruits: Highlights cherry, cranberry, and raspberry for a bright, aromatic profile. Spice and Floral Notes: Subtle expressions of clove, cinnamon, and violet enhance complexity. Silky Tannins: Promotes refined tannin structure for a smooth, elegant mouthfeel. Aging Potential: Supports graceful aging with layered complexity and aromatic depth. Guidelines: Rehydration: Rehydrate in 10 times its weight of chlorine-free water at 95°F (35°C) for 15–20 minutes. Stir gently to prevent clumping. Pitch Rate: Use 1–1.5 grams per gallon (0.25–0.4 grams per liter) for optimal fermentation and aromatic expression. Nutrient Addition: Supplement with yeast nutrients, particularly in low-nitrogen musts, to prevent sluggish fermentation. Fermentation Temperature: Maintain between 59°F and 82°F for optimal aromatic expression and structured tannin development. Extended Maceration: Suitable for long fermentations to develop depth and complexity. Download the PDF Download the PDF
$3.19
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Delvozyme® (Lysozyme)
Wine Making Use Delvozyme (Lysozyme, Lysovin) for controlling lactic acid bacteria growth in your wine. Isolated from egg whites, this enzyme will degrade the cell wall of gram positive bacteria, but will not affect yeast or gram negative bacteria such as Acetobacter. Delvozyme can be used for both Red and White Wine Malo Fermentation. Dosage: To Delay Malolactic Fermentation: Red Wine - add to grapes at 100 - 200 ppm, or 0.38 - 0.76 grams per gallon. White Wine - Add to must at 200 - 300 ppm, or 0.76 - 1.14 grams per gallon. To Block Malolactic Fermentation: White Wine - Add to must or wine at 300 - 500 ppm, or 1.14 - 1.90 grams per gallon. Stabilizing wine after MLF is complete: Add to barrel during storage at 250 - 500 ppm, or 0.95 - 1.90 grams per gallon. When blending partial and complete MLF wines: Add immeditatley after blending at 300 - 500 ppm, or 1.14 - 1.90 grams per gallon, to reduce the risk of further malolactic fermentation (MLF). Within several days any lactic should expire. For sluggish or stuck yeast fermentation: Red Wine - Add at 150 - 400 ppm, or 0.57 - 1.52 grams per gallon. White Wine - add at 300 - 500 ppm, or 1.14 - 1.90 grams per gallon. Directions for use: You can make a 10% solution of Delvozyme in water (100 grams per liter of water). However we find the easiest method is to add the desired dry weight of Lysovin in 5x its weight of warm(tepid) water. Mix for one minute, allow this mixture to stand for 45 minutes and add to must, juice or wine while mixing well. Allow 24 - 48 hours for reaction to complete. **Note: 3tsp Delvozyme = 5g Beer Making Delvozyme can be used in beer making as well. Use either in the starter (recommended if you make starters) or when pitching (adding) the yeast to the wort, do not use over 140 F. Recommended dosages is 1 tsp per 5 gallons of wort. According to studies it has no effect on flavor or clarity. Storage: Should be stored at room temperatures in a dry environment, can be stored up to 5 years.
$34.99
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Acid Test Kit
Used to determine the Total Acidity in a wine, the Acid Test Kit is an invaluable tool for any home winemaker. Total Acidity measurements are important to winemaking because the correct amount of acidity is key to maintaining a wine which is balanced in flavor and stable for ageing. Kit Contents: Large Reaction Vial 10mL Syringe 4oz of Sodium Hydroxide Reagent Phenolphthalein Indicator in 1oz Dropper Jar Reagent Stability Information: Sodium Hydroxide Solution - 0.1 Normal (2 year shelf life cool & closed, 3 month shelf life cool and opened) Phenolphthalein Indicator - 1.0% (5 year + Shelf life)
$12.99
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W15 Dry Wine Yeast
A fructophile for clean, low temperature ferments. W15 was isolated in 1991 from high quality Muller Thurgau must originating in the vineyards at the Viticulture Research Station in Wadenswil, Switzerland. W15 was developed to ferment dry whites at moderate speeds where bright fruit and heavy mouthfeel are desired. This yeast does just that, and it does so while respecting the varietal characteristics of the fruit. W15 can also be used to ferment high quality, fruit focused, light red wines from Pinot Noir and cool-climate Syrah. Short lag pahse, moderate rate fermenter at temperature ranges between 50 to 81 degrees F. Alcohol tolerant to 16%. W15 produces higher levels of glycerol and succinic acid especially at higher fermentation temperatures (above 77 degrees F). Download the PDF Download the PDF
$2.99
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Lalvin CY3079™ | Dry Wine Yeast
Lalvin CY3079 is the go-to choice for winemakers aiming to craft full-bodied, complex Chardonnay and barrel-aged whites with rich mouthfeel, creamy texture, and elegant oak integration Whether perfecting a Chardonnay or refining a white Burgundy, CY3079 ensures a smooth, layered finish with exceptional aromatic clarity Enhance complexity and mouthfeel in premium Chardonnay and barrel-aged whites Lalvin CY3079 is a specially selected wine yeast strain renowned for its ability to develop rich mouthfeel, enhanced complexity, and buttery characteristics during fermentation. Perfectly suited for Chardonnay and other barrel-aged white wines, CY3079 promotes the release of polysaccharides and encourages malolactic fermentation, resulting in wines with balanced acidity, smooth texture, and vibrant aromatics. Enhanced Mouthfeel: Promotes polysaccharide synthesis, delivering a creamy, full-bodied texture. Malolactic Compatibility: Optimized for seamless transition into malolactic fermentation, enhancing buttery and nutty notes. Aromatic Development: Elevates apple, pear, vanilla, and toasted almond aromatics. Alcohol Tolerance: Supports ABV levels up to 15%, allowing complete fermentation in high-sugar musts. Attenuation Rate: Typically achieves 85–90% attenuation, ensuring a dry, well-structured finish. Temperature Range: Performs optimally between 59°F (15°C) and 77°F (25°C), with the best expression of mouthfeel and complexity around 64°F (18°C). Medium Flocculation: Settles well post-fermentation, enhancing clarity and reducing sediment. Applications: Chardonnay: Ideal for barrel-fermented Chardonnay, bringing forward rich mouthfeel and buttery notes. White Burgundy: Elevates minerality and complexity, emphasizing ripe fruit and toasty oak integration. Viognier: Enhances stone fruit and floral notes, adding depth and roundness. Barrel-Aged Whites: Perfect for oaked Sauvignon Blanc and Semillon, adding creaminess and layered complexity. Flavor Profile: Stone Fruits & Citrus: Boosts expressions of apple, pear, and lemon zest. Buttery & Nutty Notes: Develops butter, vanilla, and toasted almond during malolactic fermentation. Rich Mouthfeel: Promotes a creamy, well-rounded palate with smooth, integrated texture. Oak Integration: Complements toasted oak, enhancing complexity and balance. Usage: Rehydration: Rehydrate in 10 times its weight of chlorine-free water at 95°F (35°C) for 15–20 minutes. Stir gently to avoid clumping. Pitch Rate: Use 1–1.5 grams per gallon (0.25–0.4 grams per liter) for optimal mouthfeel and flavor development. Nutrient Addition: Supplement with yeast nutrient to optimize fermentation and promote aromatic development. Fermentation Temperature: Maintain between 59°F (15°C) and 77°F (25°C), with 64°F (18°C) being ideal for creaminess and complexity. Barrel Fermentation: Ideal for in-barrel fermentations to enhance oak integration and complexity. Download the PDF Download the PDF
$2.99
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58W3 Dry Wine Yeast
A yeast strain that really brings out aromatic components in white wines, especially Pinot Gris, Gewurztraminer, Riesling, Viognier and Semillion. Also a great choice for mead fermenations where it has a significant aroma/flavor input. Specifically Fruity/Floral aromas are emphasized through the natural liberation of terpenes found in these varieties. What we think is particularly unique about this strain is the creation of smoky/spicy aromas. Also selected as a commercial yeast strain for its ability to create mouthfeel volume and richness. So to recap - fruity/floral/smoky/spicy aromas and flavors with good mouthfeel... where do we sign up! Lallemand recommends adding Go-Ferm during rehydration and Fermaid K to the ferment to ensure that this strain ferments to dryness. Download the PDF Download the PDF
$3.19
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Lallzyme Cuvee Blanc | Fermentation Enzyme for White Wines
Lallzyme Cuvee Blanc – Enzyme for Aroma Release and Finesse in White and Sparkling Wines Enhances aroma expression by unlocking bound terpene and thiol precursors Improves clarification and filterability through efficient pectin breakdown Increases finesse and texture by gently releasing polysaccharides Ideal for varietal whites and sparkling base wines where delicacy is key Balanced glycosidase activity preserves freshness without compromising stability Lallzyme Cuvee Blanc is a highly specific enzyme developed by Lallemand for the production of elegant, aromatic white and sparkling wines. It offers a delicate balance of pectinase and glycosidase activity that breaks down grape cell walls to improve clarification while simultaneously releasing aroma precursors trapped in glycosidic form. This selective activity enhances varietal expression—especially in terpene- and thiol-rich varieties—without producing off-flavors or excessive bitterness. The result is a wine with lifted aromatics, better mouthfeel, and improved stability, ideal for styles requiring precision and finesse. Protocol Dilute Lallzyme Cuvee Blanc in 10 times its weight of chlorine-free water. Add to juice or wine at the preferred stage—either pre-fermentation for aroma release and settling, or post-fermentation for finishing and clarification. Ensure even distribution by mixing thoroughly. Optimal temperature range is 12–20°C. Avoid use below 10°C or in combination with bentonite or SO₂ during addition. Usage Rates Recommended dosage: 2–4 grams per hectoliter = 0.02–0.04 grams per liter = 0.076–0.151 grams per gallon Use 2 g/hL for lighter aromatics or wines already showing good varietal character. Increase to 4 g/hL in more neutral juices or when maximizing aromatic potential is desired. Allow adequate contact time—typically 24 to 48 hours—depending on the winemaking stage and style.
$2.99
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Viniflora® Oenos™ 2.0 | Dry Malolactic Bacteria | 1.5 g
Oenos™ 2.0 is an ideal strain to achieve a fast, clean malolactic fermentation in barrel aged wines Goes well with most grape varieties, but is mainly used in Cabernet Sauvignon, Syrah, Merlot, Malbec, Pinot noir, Gamay, Nebbiolo, Carignan, Tempranillo and Chardonnay Direct inoculation, freeze-dried bacteria – does not require rehydration High numbers of active cells which ensure a quick start of fermentation Good for 66 gallons Viniflora® Oenos™ 2.0 is a Oenococcus oeni selected for faster malolactic fermentation. Viniflora® Oenos™ 2.0 was launched in 2014 as a new generation of Viniflora® Oenos™. Viniflora® Oenos™ 2.0 fits the same specifications as Viniflora® Oenos™. However, it was selected for even faster malolactic fermentation (figure 1). This means that when a winemaker desires a fast, efficient and reliable malolactic fermentation Viniflora® Oenos™ 2.0 should be the first choose. For more information about ML Bacteria, please see MoreWine!'s Guide to Malolactic Fermentation. Characteristics: The go-to malolactic bacteria for safety and speed in a broad variety of wine styles Produces a medium amount of diacetyl Goes well with most grape varieties, but is mainly used in Cabernet Sauvignon, Syrah, Merlot, Malbec, Pinot noir, Gamay, Nebbiolo, Carignan, Tempranillo and Chardonnay Can be used for early co-inoculation, late co-inoculation as well as sequential inoculation Key Features: Recommended for white and red wines Direct inoculation, freeze-dried bacteria – does not require rehydration High numbers of active cells which ensure a quick start of fermentation This strain is pH tolerant to 3.2, Total SO2 to 40 ppm, temperature 62 – 77°F and alcohol to 15% (v/v) Low level of volatile acidity Cinnamoyl Esterase Negative
$23.99
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Polycacel
This product replaces our FIN73 - Polylact Polycacel can be used both curatively and preventatively against browning and pinking in white juice or in wine under long term storage conditions. Polycacel helps improve wine color and overall organoleptic properties. A is a blend of polyvinylpolypyrolidone (PVPP), soluble postassium casein and micropulverized cellulose. This specific blend allows for more complete action on phenolic compounds while avoiding over-stripping the wine. To Use: Slowly mix Polycacel in 20 times its weight in cold water (do not use juice or wine). Allow the mixture to stand for 2 hours. For enhanced homogenization, gradually add the Polycacel to the wine container while mixing. Dosages: To protect from oxidation, add to wine and mix thoroughly: 150-300 ppm To treat oxidized juice, add during cold settling: 300-700 ppm
$5.99
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VRB Dry Wine Yeast
VRB is a Spanish isolate from the Rioja region that was selected for its ability to handle high-alcohol (up to 17%) fermentations while creating exceptional flavor complexity. VRB improves mid-palate mouthfeel, softens tannins, and enhances the varietal characteristics of the fruit with an emphases on dried plums, jammy fruit and hazelnuts. Shows a good compatibility with MLF. A moderate rate fermenter with medium nitrogen requirements. A great strain for Tempranillo, Barbera, Sangiovese and Zinfandel. Temperature range 58-80F. Download the PDF Download the PDF
$2.99
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Malic Acid
Due to high demand, the 55 lb is currently out of stock. Be the first to receive your items by placing a pre-order today. We will automatically ship this to you when we receive more inventory. 3.4g per gallon adjusts acidity by +.1%. It will lower pH less than will tartaric acid. Malic acid is the acid found in apples and is therefore the best choice for adjusting ciders. Malic is less sour than tartaric acid and can also be used to make acid adjustments in Rieslings, Gewurztraminer, and Muscat varieties, though many winemakers still prefer to use tartaric acid in these situations. You would not want to add Malic acid to any wine that will undergo a malolactic fermentation. As a note: only half of the artificially added malic acid will convert to lactic acid during a malolactic fermentation. A rough approximate of weight is 1 tsp = 2.7 grams. We highly recommend using a scale to weigh the product for an accurate dose. We do not recommend relying on these rough conversions for accurate dosage rates.
$2.99
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R-2 Dry Wine Yeast
R2 was isolated in the Sauternes region of Bordeaux by Brian Croser of South Australia. In addition to enhancing esters and mouthfeel, it has excellent cold temperature properties and will ferment as low as 50 degrees F, making it ideal for Icewine production. However, if it does not get proper nutrients it can tend to produce VA and H2S. For this reason, hydration with GO-FERM and the addition of Fermaid K is definitely recommended to optimize its' potential. R2 helps produce intense, direct fruit style whites by liberation of fruity and floral fermentative aromas. R2 also helps to enhance the varietal chacter by an enzymatic release of bound aroma precursors. It is recommended for aromatic white varieties such as Sauvignon Blanc, Riesling, Gewurztraminer, Chenin Blanc, Vidal, and Seyval. It is classified as a Saccharomyces cerevisiae bayanus. Best results from 50 to 86 degrees F, with an alcohol tolerance to 16%. Download the PDF Download the PDF
$2.99
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Lallemand UVAFERM 43® | Dry Wine Yeast
UVAFERM 43 is the yeast of choice for winemakers aiming to produce powerful, structured red wines with deep color and bold flavor Its resilience under challenging fermentation conditions ensures complete fermentation, making it an invaluable tool in both standard and difficult winemaking scenarios Enhance fermentation power and structure in bold red wines UVAFERM 43 is a robust wine yeast strain, selected for its exceptional ability to ferment under challenging conditions. Its fructophilic nature makes it particularly effective in high-sugar musts, ensuring complete fermentation even when fructose concentrations are elevated. This strain is ideal for crafting full-bodied red wines, offering enhanced color extraction, tannin structure, and aromatic intensity. High Alcohol Tolerance: Capable of fermenting up to 18% ABV, suitable for high-sugar musts. Temperature Resilience: Operates effectively between 55°F (13°C) and 95°F (35°C), accommodating a wide range of fermentation environments. Fructophilic Fermentation: Efficiently ferments musts with high fructose content, common in late-harvest or overripe grapes. Enhanced Color and Tannin Extraction: Promotes the extraction of anthocyanins and polyphenols, contributing to vibrant color and structured mouthfeel. Low Nutrient Requirements: Performs well with minimal nitrogen supplementation, reducing the risk of sluggish fermentation. Applications: Full-Bodied Red Wines: Optimal for varietals like Cabernet Sauvignon, Syrah, Zinfandel, and Malbec, enhancing body and color stability. Fortified Wines: Suitable for Port-style and Amarone-style wines, supporting high alcohol levels. Warm Climate Fermentations: Excels in hot climates where fermentation temperatures are elevated. Stuck Fermentation Recovery: Effective in restarting difficult or stuck fermentations due to its high heat and alcohol tolerance. Flavor Profile: Dark Fruit Intensity: Emphasizes bold notes of blackberry, black cherry, and plum. Spice and Earthiness: Introduces subtle layers of black pepper, cocoa, and leather for added complexity. Smooth Tannin Structure: Develops well-rounded tannins, contributing to a balanced mouthfeel. Deep Color Stability: Supports anthocyanin preservation, resulting in rich, vibrant hues. Usage: Rehydration: Rehydrate in 10 times its weight of chlorine-free water at 104°F (40°C) for 15–20 minutes. Stir gently to avoid clumping. Pitch Rate: Use 1–1.5 grams per gallon (0.25–0.4 grams per liter) for optimal fermentation and color development. Nutrient Addition: Supplement with yeast nutrient to optimize fermentation strength, especially in high-Brix musts. Fermentation Temperature: Maintain between 55°F and 95°F to maximize aromatic expression and color stability. Extended Maceration: Suitable for long maceration periods to deepen color and enhance tannin structure. Download the PDF Download the PDF
$2.99
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CellarScience® Silicone Bung | Solid | Large Barrel
CellarScience's solid silicone bung will provide a tight fit and secure seal to your oak barrel or variable volume tank lid. Made from pliable silicone for a great seal and is easy to clean and sanitize. Tapered design ensures it will fit most oak barrels as well as the hole in most variable volume lids. Top measures 2.5" including flange, 2.25" excluding flange. Tapers to 1.75" diameter at bottom.
$7.69
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Red Star | Premier Classique | Dry Wine Yeast
Another good all purpose wine yeast used to give complex aromas and flavors, but it really does require proper nutrients to avoid sulfur problems. Especially suited to Chardonnays. Alcohol tolerant to 14%. Ferments from 60 to 80 degrees. Formerly known as "Montrachet". Download the PDF
$1.79
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Yeast Hulls | For Stuck or Sluggish Ferments
Yeast Hulls are ususally the first action when you have a stuck or sluggish alcoholic or malolactic fermentation. Yeast Hulls are essentially dead yeast cells that absorb auto toxic yeast by-products that could be inhibiting your active yeast or ML culture from doing their job - finishing your fermentation! Yeast Hulls are then typically followed by Pro-Desert in the case of a stuck alcoholic fermentation or Acti Ml in the case of a stuck ML ferment. As a side note, Yeast Hulls are included in the Fermaid K mix of nutrients to help prevent problem ferments from the onset. The reason you would not use Fermaid K for most stuck ferments is that Fermaid K contains DAP. If DAP (Diammonium Phosphate) is added to the ferment past the point of metabolization by the yeast it could potentially leave an unwanted, residual flavor. Use at the rate of .5 to .9 grams per gallon. If stored in a cool, dry place, will last up to 3 years. A rough approximate of weight is 1 tsp = 2 grams. We highly recommend using a scale to weigh the product for an accurate dose. We do not recommend relying on these rough conversions for accurate dosage rates.
$1.69
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VL3 Dry Wine Yeast
VL3 is a Bordeaux isolate that was selected following in-depth research identifying the molecules responsible for Sauvignon Blanc aroma. VL3 was found to enhance Sauvignon Blanc varietal characters and aromas (Mercaptopentanone, Mercaptohexanol, etc.) Subsequent experimentation has found this to be true of other white varietals such as Riesling, Pinot Gris, and Pinot Blanc as well. VL3 is well suited to aging on the lees and produces very low levels of VA and SO2. A premier yeast for Sauvignon Blanc fermentation worldwide. It is important to note that many of the sought after compounds that are enhanced by VL3 are actually sulfur based, so the use of oxygen and or Cu (copper) will effectively diminish or even remove them from the final wine if used in excess. Therefore, the use of nutrients is strongly recommended to avoid any H2S problems that would require oxygen or Cu to counteract. Best results from 60 to 68 degrees F, with an alcohol tolerance to 14%. Download the PDF Download the PDF
$3.49
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CellarScience® PURPLE Dry Wine Yeast | Premium Wine Yeast
Big mouthfeel from high glycerol /polysaccharide /mannoproteins Flavors of Cherries, Raspberries, Figs, Jam, Red currant High alcohol tolerence Low nutrient needs Perfect for Syrah, Zinfandel, Pinot, Merlot, Malbec, Sangiovese, Grenache Our go-to choice for those reds originating from the Cote du Rhone in France such as Syrah, Grenache, and Mouvedre. Also a top choice for Zinfandel, Sangiovese, Malbec, Merlot, and Pinot. Induces flavors of ripe cherries, raspberries, red curant, figs and jam. Due to its production of glycerol and release of mannoproteins it produces full bodied, rich red wines. PURPLE has a very low production of SO2 which is favorable for an easy malolactic fermentation (MLF) post fermentation. PURPLE is also an easy to ferment yeast with a low nutrient needs which is the opposite of our Big Red strain. It also has a "killer" quality and naturally inhibits unwanted bacterial or wild yeast growth during fermentation. Start Time: Slower Alcohol tolerance: 15% Nitrogen demand: low Production of volatile acidity: Low Production of SO2: Low Ease to Ferment with MLF: Average YAN Requirement @ 23 Brix: 200 ppm Malic Acid Consumption: Low Yeast Type: Cerevisiae Optimal Fermentation Temp: 65–85°F Proper yeast hydration helps ensure a healthy fermentation. For every gram of yeast, mix .25 g of FermStart yeast nutrient with 25 ml of sterilized tap water between 104–106°F/40–41°C. When water reaches 104°F/40°C, sprinkle yeast into water and stir gently. Allow the slurry to stand undisturbed for 15 minutes and then stir again. For every gram of yeast used add 25 ml of clean must to the yeast slurry and let stand 15–20 minutes. If necessary, use additional must to adjust yeast slurry to within 18°F of must temp before pitching. For a complete nutrient schedule sufficient for most fermentations, add 1.5 g of FermFed DAP Free per gallon of must at the first sign of fermentation and 1 g of FermFed per gallon of must after 1/3 sugar depletion. Download the PDF
$1.99
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RHST Dry Wine Yeast
R-HST was selected for its exceptional oenological properties in Riesling from trials conducted 1991 to 1996 in the Heiligenstein region of Austria. R-HST has a short lag phase and generation time, even at cold temperatures. These features allow it to dominate and persist over spoilage yeast such as Kloeckera apiculata, where other Saccharomyces cerevisiae might have difficulty. A relatively neutral strain, R-HST retains fresh varietal character while contributing body and mouthfeel. R-HST produces crisp, premium white wines intended for aging. R-HST is best used when the most transparency between a fruit and a finished wine is sought. This can be useful for showcasing quality fruit and terroir differences, as well making sure original fruit characters are retained in a final blend. Best results from 50 to 86 degrees F, with an alcohol tolerance to 15%. Download the PDF Download the PDF
$2.99
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RBS 133 Dry Wine Yeast
An interesting yeast which can reduce the sensation of acidity and astringency in red wines from difficult conditions such as high acidity. Delicate fruit-forward aromas of cherry, blackberry, plum, and ripe fruits will be present in wines fermented using this yeast. Floral characteristics such as wild violet, as well as spice and vanilla have also been noted. This yeast is perfect for Sangiovese, hybrids, roses, and other light reds. The RBS strain will work well in conjunction with malolactic fermentation. Best fermentation results within 61-82°F. This is a moderate fermenter with medium nutrient requirements, capable of withstanding alcohol content up to 16%. Download the PDF Download the PDF
$2.99
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Scottzyme Pec5L | Pectinase | Add to Must or Juice | Increases Yield
Scottzyme PEC5L – Pectinase Enzyme for Enhanced Settling and Juice Yield Rapidly breaks down soluble pectins for faster settling and improved clarity Increases free-run and press yield by reducing viscosity and cell wall resistance Improves flotation efficiency and tightens lees compaction Effective across a wide pH range and performs well at low temperatures Ideal for white, rosé, and fruit wines requiring fast clarification and clean separation Scottzyme PEC5L is a highly active liquid pectinase enzyme formulated to reduce pectin-related haze and increase processing efficiency in juice production. By breaking down soluble pectins, PEC5L dramatically improves juice release during pressing, reduces must viscosity, and accelerates settling or flotation. The result is clearer juice, more compact lees, and higher overall yield. Its formulation is optimized for cool-temperature performance and a broad pH range, making it a versatile tool in grape and non-grape juice clarification. Unlike general pectinases, PEC5L is designed to act quickly and cleanly, without over-extraction of phenolics or bitterness. Protocol Dilute Scottzyme PEC5L in 10 times its volume of chlorine-free water or juice. Add to must or juice immediately after crushing or during transfer to settling tank. Mix well to ensure even distribution. For flotation, add just before or during the flotation process. Avoid adding at the same time as SO₂ or bentonite. Usage Rates Recommended dosage: 1.5–4.0 mL per 1000 lb of fruit or 0.075–0.2 mL per gallon of juice = approximately 0.02–0.05 mL per liter Use lower rates for clean, low-pectin fruit or warmer temperatures. Use higher rates for pectin-rich grapes, low temperatures, or difficult-to-settle musts. Allow contact time of 2 to 12 hours depending on conditions and desired level of clarification.
$14.99
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CellarScience® BIG RED Dry Wine Yeast | Premium Wine Yeast
Recomended for aged red wines High color extraction Significant polysaccaride and glycerol production for huge mouthfeel High alcohol tolerence High nutrient need Top choice for Bordeaux varietals Cabernet, Cab Franc, Petite Verdot and Merlot Also excelletnt for Sangiovese, Nebbiolo and some Pinot The name kind of says it all. BIG RED is ideal for producing big, complex red wines with lasting fruit. Depending on the grape varietal used it can emphasize complex berry fruit and spice flavors. This strain is very efficient at breaking down and extracting tannins and anthocyanins from grape skin walls, making wines with dark inky color and a tannin profile suitable for extended aging. BIG RED also produces a great mouthfeel due to the significant production of polysaccharides and glycerol. It is also tolerant to higher alcohol levels making it ideal for those grapes that need to stay on the vine just a little longer to get full phenolic ripes with smooth tannin profiles. So lets recap... emphasizes berry fruit with many varietals, produces dark color, extracts a full array of tannins suitable for extended aging, makes wines with great mouthfeel, and is resistant to higher alcohols. Is there a catch? No, but to get all that done BIG RED does love nutrients and you will need to feed it and pay attention to it during fermenation. This is a strain where you would ideally know your Free Available Nitrogen levels that you could base a nutrient schedule around. Absent those numbers or a history with the grapes you are fermentiing, we would suggest you start with hydrating with Fermstart, feeding with FermFed DAP free at the onset of fermentation and feeding again with regular Fermfed after 1/3 sugar depletion. BIG RED is a very low producer of H2S when nutrient demands are met. The perfect strain if you want to make amazing reds. Not the perfect strain if you have a vacation planned during the middle of fermentation and are going to ask your neighbor to punch down...we hear it all!. Because this strain respects varietal character it can be used for a broad spectrum of red grape varietals. Perfect of courese for those Bordeaux varietals ilke Cabernet Sauvignon, Cabernet Franc, Petit Verdot and even Merlot. Also our first choice for Nebbiolo and some bigger style Sangiovese and Pinot Noir. Start Time: Fast Alcohol tolerance: 16%+ Nitrogen demand: high Yan Requirement @ 23 Brix: 270ppm Production of volatile acidity: Low Production of SO2: Low Ease to Ferment with MLF: Average Yeast type: Cervisiae Killer Factor: Neutral Malic Acid Consumption: Average Optimal Fermentation Temp: 65–85°F Proper yeast hydration helps ensure a healthy fermentation. For every gram of yeast, mix .25 g of FermStart yeast nutrient with 25 ml of sterilized tap water between 104–106°F/40–41°C. When water reaches 104°F/40°C, sprinkle yeast into water and stir gently. Allow the slurry to stand undisturbed for 15 minutes and then stir again. For every gram of yeast used add 25 ml of clean must to the yeast slurry and let stand 15–20 minutes. If necessary, use additional must to adjust yeast slurry to within 18°F of must temp before pitching. For a complete nutrient schedule sufficient for most fermentations, add 1.5 g of FermFed DAP Free per gallon of must at the first sign of fermentation and 1 g of FermFed per gallon of must after 1/3 sugar depletion. Download the PDF
$1.99
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CellarScience® RED Dry Wine Yeast | Premium Wine Yeast
Emphasizes red berry fruit flavors High color extraction Makes wines that do not require extended aging Med-High nutrient need Top choice for Zinfandel, Sangiovese, Pinot, Merlot Our most popular red yeast is a perfect choice for Pinot Noir, Zinfandel, Sangiovese, Merlot and other reds where you want to emphasize red fruit flavors. When compared with BIG RED or PURPLE, RED is less about structure and body and more about fruit. Fantastic by itself if you plan to blend separately fermented lots back together. RED is a great choice to contribute red berry flavor. Also known to help produce intense color. Also a great choice for Cabernet, Syrah and other traditinoal big red varietals where you would like to emphasize fruit over structure and body. Because RED ferments cleaner than most yeast at high temperatures, it is the perfect choice if you are fermenting in a warm environment and do not have temperature control. It does not produce much SO2 so it is a great choice for easier ML fermentations Start Time: Average Alcohol tolerance: 16% Nitrogen Demand: Med Yan Requirement @ 23 Brix: 250ppm Production of volatile acidity: low Production of SO2: Low Ease to Ferment with MLF: Good Yeast Type: Cerevisiae Killer Factor: Neutral Malic Acid Consumption: Average Optimal Fermentation Temp: 65–85°F Proper yeast hydration helps ensure a healthy fermentation. For every gram of yeast, mix .25 g of FermStart yeast nutrient with 25 ml of sterilized tap water between 104–106°F/40–41°C. When water reaches 104°F/40°C, sprinkle yeast into water and stir gently. Allow the slurry to stand undisturbed for 15 minutes and then stir again. For every gram of yeast used add 25 ml of clean must to the yeast slurry and let stand 15–20 minutes. If necessary, use additional must to adjust yeast slurry to within 18°F of must temp before pitching. For a complete nutrient schedule sufficient for most fermentations, add 1.5 g of FermFed DAP Free per gallon of must at the first sign of fermentation and 1 g of FermFed per gallon of must after 1/3 sugar depletion. Download the PDF
$1.79
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Kupzit® Hydrogen Sulfide Remover
Kupzit® is an innovative copper citrate preparation developed for the elimination of sulfide off-flavors, particularly hydrogen sulfide odors in wine and fruit wine. Kupzit® contains 2 % copper citrate. For easy dosage and handling, it is coated onto a mineral carrier material, a particularly pure, high-quality granulated bentonite. Kupzit® reacts within minutes with sulphur compounds such as hydrogen sulfide and mercaptans. These compounds bind with Kupzit and then settle out to the bottom. Dosage and Application: Trials are absolutely recommended. Generally, the dosage amount is 5-20 g/100 L or .05-.2 g/L. Exceptionally bad cases may require up to twice as much. See the attached Manufacturer's instructions for further details along with information on dosage and storage.
$4.39
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Ice Pack & Insulated Mailer | Fits Up to 12 Liquid Yeast Packs
Includes 4 ice packs and an insulated mailer to help keep your liquid yeast cold during transit. The Insulated Mailer option is a great way to extend the length of time your ice remains cool! These special envelopes contain self expanding foam, which creates a form-fitting container that protects and insulates liquid yeast. This upgrade includes the Insulating Envelope and 4 Ice Packs. This option fits a number of yeast vials, pouches, or cans, and is made from thick foam insulation. Because different yeast take up different space, each producer will fit a different quantity in this mailer. See the chart below for what quantity of what yeast will fit inside. Yeast Producer / Brand Quantity that will fit in Insulated Mailer White Labs 12 Wyeast 12 Imperial Yeast 12 Omega 12 If you aren't ordering this many yeast and want a smaller insulated mailer, check out our ICE1. To purchase, simply add however many Insulated Mailers will be needed to contain however many yeast are in your cart. Please Note! Any additional yeast will be shipped outside of the mailer. This option includes ice, and no additional ice needs to be purchased. Please note - Liquid yeast will not arrive cold even when shipped with ice packs. Ice packs and insulated mailing options are designed to keep the yeast colder for longer during shipment, but they will not ensure that your yeast arrives cold. We will not replace liquid yeast that arrives warm. During warmer months we strongly recommend you choose dry yeast.
$8.99
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Toasted Oak Liquid Tannin - Fruit Enhancer Plus - 4 oz
Enological tannins offer the winemaker the possibility to add refined, highly-bindable tannin to your wine at any stage during the process. Benefits can include increased structure and mouthfeel, color stabilization, stability, anti-oxidative qualities, and overall complexity. Tannins can reduce vegetal/herbaceous characteristics and perceived astringency. New Liquid Oak Tannins produced by Toasted Oak Inc. are water based, French Oak Tannin concentrates, designed to easily integrate smooth and flavorful oak character into a wine, without the cost or hassle of traditional oak barrels. While powdered tannins are similarly cost effective, there will be some loss of flavor and texture due to the high temperatures necessary to evaporate all liquid out. Liquid Oak Tannins are the perfect balance of oak barrel flavor, and pure tannin cost. Aside from the beneficial flavor impact of these products, they are also easier to add to the wine and assure even dilution. These Liquid Oak Tannins are for red and white wines. Please do bench trials carefully when considering their use in white wines. Additions may cause filterability(and stability) changes. Do not exceed 30% of normal red wine dosing for white wines. Fruit Enhancer Plus has more proanthocyanidic tannin components to emphasize a ripe berry character and a fruity, aromatic style. It has to be carefully dosed as it will have a strong influence on the existing character of the wine. Works best on red wine to accentuate a ripe berry character (Black Cherry character). A 4 oz bottle of Fruit Enhancer Plus will treat 125 gallons of wine with a low dosage, or 47 gallons at a high dosage. Please see the Documents tab above for additional information as well as Bench Trial procedure.
$21.99
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Copper Sulfate (1%) | 1 oz
Some homewinemakers will treat wine affected with Hydrogen Sulfide (rotten egg smell) by stirring with a copper rod or racking through a copper "scrubby". Copper converts the the hydrogen sulfide into copper sulfide, which is not soluble in wine. After a few days the wine is racked off the copper sulfide which by that time has precipitated down to the bottom of your vessel. However, putting wine in direct contact with a non-measured amount of copper can result in residual copper being left in your wine, especially in low pH environments. A more professional approach to the reduciton of Hydrogen Sulfide is to use a measured amount of copper sulfate in a 1% solution. Normally a trial is set up to determine the least amount needed to eliminate the problem (see FIN84 bench trial kit). Because the amounts used are very small, it will be necessary to use a pipette. Add the correct amount of copper sulphate in small .1 ppm doses. Wait several days for the copper sulfide to settle out and then rack off the lees. Do not add copper sulphate during an active fermentation as it may actually cause more hydrogen sulfide to form. If you detect hydrongen sulfide or "rotten egg" smell during fermentation, it is a sign of poor yeast nutrition. Add the recommended amount of Fermaid K (AD345) for the amount of yeast you used to correct this issue - it should keep you from having to use the copper later!
$3.99
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Lallemand | Go-Ferm Sterol Flash™ | Reydrate Yeast in Cold Water
Due to high demand, the 10 kg is currently out of stock. Be the first to receive your items by placing a pre-order today. We will automatically ship this to you when we receive more inventory. Improves fermentation kinetics and aroma production Allows yeast to be rehydrated in cool water (60°F) without any loss of viability or vitality Eliminates the need for acclimatization steps—rehydrated yeast can be added directly to juice or must after 15 minutes Requires 50% less water than Go-Ferm™ or Go-Ferm Protect Evolution™ Non-clumping, instantly disperses in cool water Go-Ferm Sterol Flash™ is a revolutionary new yeast rehydration nutrient that is fast, simple to use, and saves time, labor, and water without compromising on yeast viability and vitality. Derived from autolyzed yeast, Go-Ferm Sterol Flash™ provides optimized levels of micronutrients (vitamins and minerals) and extremely high levels of survival factors including sterols and unsaturated fatty acids. Go-Ferm Sterol Flash™ has the highest bioavailability of sterols and is produced with a specific Lallemand micro agglomerated process, for instant dispersion during the rehydration step. When suspended in cool water, the high content of sterols are quickly released and integrated in the yeast membrane within 15 minutes. The high content of sterols reinforces the permeability and fluidity of the yeast membrane. Go-Ferm Sterol Flash™ increases yeast viability, yeast vitality, and optimizes wine yeast aroma precursors assimilation under any conditions in red, rose, and white wine fermentation. With Go-Ferm Sterol Flash™, no yeast acclimatization steps are required before inoculation in must. Go-Ferm Sterol Flash™ is a revolutionary yeast rehydration protector with instant dispersion in cool water for a more reliable alcoholic fermentation and wine yeast sensory impact. Use: Use at a rate of 1.25 g Go-Ferm Protect per 1 g of yeast. A rough approximate of weight is 1 tsp = 3.2 grams. We highly recommend using a scale to weigh the product for an accurate dose. We do not recommend relying on these rough conversions for accurate dosage rates. Download the PDF Store in a cool and dry environment at 65°F. Once opened, keep tightly sealed and dry.
$3.49
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Gelocolle
Often used with isinglass, bentonite, gelatins, and other organically derived fining agents to help compact the lees, Gelocolle is a liquid solution of suspended silica that is used during fining to help improve settling. Gelocolle also helps to limit the risk of over-fining when used in conjuction with other fining agents. Gelocolle can also be used to remove excess protein in both red and white wine, thereby improving their filterability. Gelocolle is completely inert and will not add any flavor or aroma to the wine. To Use Add Gelocolle 1 hour after the fining agent. Mix well to ensure homogenization. Recommended Dosage: In general, use Gelocolle at a rate of 1 mL Gelocolle per 1 g of the fining agent you are aiding. For protein removal use 5 ml Gelocolle per gallon of wine. Note: When using Gelocolle with a gelatin fining, use 1.0 mL of Gelocolle to 1.0 mL of gelatin. Once opened use immediately. Best stored at 50-68 F (10-20 C). Gelocolle solidifies irreversibly when frozen.
$4.49
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Cristalline Plus
This product is a direct replacement for our FIN74 - Ichtyocolle. Recommended for whites, roses and fruit wines, Cristaline Plus is a blend of isinglass (fish-derived protein) and citric acid stabilized with SO2. Cristaline Plus has a strong positive charge which makes it very effective at improving the clarity of a wine (even those that are made from botrytised grapes). As an added benefit, Cristaline Plus can help improve the filterability of a wine. Cristaline Plus is not sensitive to cold temperatures and may be slow to finish settling. The use of Gelocolle (FIN64) an hour after the addition of Cristaline Plus will help speed the settling process and create a more compact lees. To Use: Dissolve Cristaline Plus in 150-200 times its weight (75-100 mL) of clean, warm water (59-68 F/15-20 C) Let mixture swell for 3 hours If the solution is too viscous add additional warm water Add the solution quickly into the whole volume of wine to be treated while stirring and mix well to distribute the Cristaline Plus evenly throughout the wine Rack as soon as the lees are well settled (wait 72 hours before filtering or allow 8-10 days settling before racking) Dosage Range: 15-30ppm (mg/L)
$1.79
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CellarScience® Universal Breathable Bung | Glass Carboys
A breathable Silicone stopper that acts as both a stopper and an airlock. Unique design allows CO2 pressure to escape but keeps Oxygen and airborne contamination out. This quickly became our stopper of choice for wine, and is a popular style used by numerous commercial wineries. Fits 3, 5, 6 & 6.5 gallon glass carboys, 1 gallon bottles, growlers, and 500 mL flasks. Replaces Stopper Sizes #6, #6.5, #7, #8 Stopper Measurements: 0.94" x 1.48" (24 mm x 37.5 mm) The flapper stopper protrudes roughly 2.5" from the stopper to allow for easy assembly Other available sizes include the Universal Breathable Bung and the Breathable Barrel Bung. All three size options can be purchased in one complete bundle with the Breather Bung Pack.
$7.69
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Caseinate de Potassium (Caseine Soluble)
Caseinate de Potassium, formally Caseine Soluble, is a concentrated, powdered form of Potassium Caseinate produced from milk. Helps eliminate oxidized phenolic (brown colored) and bitter compounds in white wines, rose wines, fruit wines, and meads. Caseinate de Potassium can be used preemptively in the must or as a curative step on finished wine. Recommended Dosage: In Juice: 1.9-3.8 g/gal (500-1000 ppm) In Wine: 0.8-3.8 g/gal (200-1000 ppm) Preparation For Use Add the pre-measured amount of Caseinate de Potassium to 10 times its weight of cold water (do not use juice or wine). Allow the solution to swell for 4 hours Stir to dissolve any lumps When completely dissolved, add the mixture slowly to the juice or wine while stirring continuously (for juice, add Caseinate de Potassium before settling). Once added, strongly stir the entire wine volume to get the Caseinate de Potassium to integrate with the wine. Once Caseinate de Potassium has been dissolved, use the preparation within 2 hours. Minimum contact is 2 days, maximum 15 days. The amount needed for your specific wine is best determined by a bench trial. A rough approximate of weight is 1 tsp = 2.3 grams. We highly recommend using a scale to weigh the product for an accurate dose. We do not recommend relying on these rough conversions for accurate dosage rates.
$7.99
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Sensy™ Dry Wine Yeast
Sensy™ yeast for whites and rosé was selected for its special ability to produce very low levels of SO2 and H2S while completing rapid alcoholic fermentation under white winemaking conditions. Low acetaldehyde production is a great asset in helping to stabilize wines with low to moderate SO2 levels. Recommended for white wines, even under low temperature and NTU conditions. Sensy™ has a short lag phase and low nutrient demand. Respectful of varietal aromas, with balanced mouthfeel and freshness. Malolactic bacteria friendly. For best results, fermenting in the 54-64°F range is recommended. Tolerant up to 14.5% alcohol. Download the PDF Download the PDF
$2.99
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Ascorbic Acid
Due to high demand, this item is currently out of stock. Be the first to receive your items by placing a pre-order today. We will automatically ship this to you when we receive more inventory. Ascorbic acid is a quick-acting and powerful antioxidant that is used in white winemaking to protect against light and short aerations, such as racking and bottling. It works by rapidly converting dissolved oxygen into hydrogen peroxide before it has a chance to react with oxidative enzymes and cause browning. However, this hydrogen peroxide itself needs to be removed from the wine in order to avoid the very phenomenon that was trying to be avoided in the first place, namely oxidizing the wine. The answer lies in always making sure that the free SO2 levels are correct, both before the ascorbic addition is to be made and after. (Note that "Titrettes" are not accurate enough for this, and that a more precise means of determing free SO2 is needed, such as an Aeration-Oxidation set-up). Addition rate is around 50 mg/l (ppm) as long as the free SO2 is maintained at 30 mg/l (ppm). A rough approximate of weight is 1 tsp = 3.2 grams. We highly recommend using a scale to weigh the product for an accurate dose. We do not recommend relying on these rough conversions for accurate dosage rates.
$2.49
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Uvaferm SVG Dry Wine Yeast
A notable strain for its ability to enhance Sauvignon Blanc varietal characteristics while maintaining good fermentation kinetics. Wines fermented with SVG are described as having more intensity and a balance of mineral, citrus and spicy notes. Alcohol tolerant to 15%, this strain has moderate nutrient requirements and a fermentation temperature range of 61-79°F. This is a great choice for enhancing natural varietal characteristics in Sauvignon Blanc, Riesling, Pinot Gris, and other dry whites. An interesting strain for its ability to metabolize roughly 25% of the malic acid in a wine, naturally helping to lower a wine's acidity Download the PDF Download the PDF
$2.99
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Toasted Oak Liquid Tannin - Mocha - 4 oz
Enological tannins offer the winemaker the possibility to add refined, highly-bindable tannin to your wine at any stage during the process. Benefits can include increased structure and mouthfeel, color stabilization, stability, anti-oxidative qualities, and overall complexity. Tannins can reduce vegetal/herbaceous characteristics and perceived astringency. New Liquid Oak Tannins produced by Toasted Oak Inc. are water based, French Oak Tannin concentrates, designed to easily integrate smooth and flavorful oak character into a wine, without the cost or hassle of traditional oak barrels. While powdered tannins are similarly cost effective, there will be some loss of flavor and texture due to the high temperatures necessary to evaporate all liquid out. Liquid Oak Tannins are the perfect balance of oak barrel flavor, and pure tannin cost. Aside from the beneficial flavor impact of these products, they are also easier to add to the wine and assure even dilution. These Liquid Oak Tannins are for red and white wines. Please do bench trials carefully when considering their use in white wines. Additions may cause filterability(and stability) changes. Do not exceed 30% of normal red wine dosing for white wines. Mocha has 10 g of tannin / liter of concentrate. It brings out the character of a heavy toast barrel, slightly smoky with chocolate-coffee undertones A 4 oz bottle of Mocha Liquid Tannin will treat 47 gallons of wine with a low dosage, or 32 gallons at a high dosage. Please see the Documents tab above for additional information as well as Bench Trial procedure.
$21.99
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Bentolact S
Bentolact S is a proprietary IOC blend of soluble casein and bentonite. It is most effective when used early (during cold settling). This fining agent is formulated for the preventative treatment of must prone to oxidation. It will help prevent the formation of undesirable off-characters. Using this with whites, roses, and light fruit wines will help prevent any negative characters from forming as a result of oxidation during processing. Juice - Applied at a rate of 2.25 g / gal. Wine - Applied at a rate of 6 g / gal. Dissolve in 10 times its weight in cold water and mix vigorously to dissolve any clumps. Allow the mixture to stand for 3 hours. Add to the juice or wine during a pump-over or a good mixing. Depending upon the wine, a Bentolact S addition may take up to 7 days to settle. Please Note: For best results, Bentolact S should be mixed in the juice or wine during a pump-over or tank mixing.
$5.99
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CellarScience® LUSCIOUS Dry Wine Yeast | Premium Wine Yeast
Autolyzing, quick release of polysaccarides such as mannoproteins Top choice for sur lie aging Ability to ferment cold for clean flavor with emphasis on mouthfeel and toastiness of sur lie aging When fermented warmer exoctic tropical flavors shine Frequently used to make luscious Chardonnays and similar white wines Luscious Chardonnays with creamy mouthfeel and deep complexity... if that is your end point, LUSCIOUS is your starting point. LUSCIOUS can be fermented at different temps depending on your style preference. Ferment it cooler, it can handle it, and put the emphasis on the creaminess and the toasted champagne-like complexity of sur lie ageing. Or crank it up a bit warmer and add in some more tropical notes, your choice. However the magic of LUSCIOUS really happens after fermentation when this yeast goes naturally goes nuclear, implodes and breaks open its cell walls, during a process called autolysis. Polysaccharides such as mannoproteins are released into the wine... and man, it's all about those mannoproteins creating that rich, creamy mouthfeel that so many Chardonnay drinkers seek out. The silky richness is emphasized even futher by sur lie aging, aging on clean lees for a period of time, in either tank or barrel. Being a low producer of SO2 it is naturally great candiate for later malo-lactic fermentations. Now that we have painted a picture try putting this marketing wizardry on your next label "The 10-40w viscosity of this wine is due to it being loaded with mannoproteins from the guts of exploded yeast cells". Maybe leave us out of the wine marketing department but we do know a winning yeast when we taste it. #1 for this style of Chardonnay but also a top choice for Viognier and other whites. Optimal Fermentation Temp: 55–68°F Start Time: Average Alcohol Tolerance: 14%+ Nitrogen Demand: Average YAN Requirement @ 23 Brix: 245 ppm Production of volatile acidity: Average Production of SO2: Low Cap/Foaming: Low Ease to Ferment with MLF: Good Lees Aging: Best Choice Proper yeast hydration helps ensure a healthy fermentation. For every gram of yeast, mix .25 g of FermStart yeast nutrient with 25 ml of sterilized tap water between 104–106°F/40–41°C. When water reaches 104°F/40°C, sprinkle yeast into water and stir gently. Allow the slurry to stand undisturbed for 15 minutes and then stir again. For every gram of yeast used add 25 ml of clean must to the yeast slurry and let stand 15–20 minutes. If necessary, use additional must to adjust yeast slurry to within 18°F of must temp before pitching. For a complete nutrient schedule sufficient for most fermentations, add 1.5 g of FermFed DAP Free per gallon of must at the first sign of fermentation and 1 g of FermFed per gallon of must after 1/3 sugar depletion. Download the PDF
$1.99
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Dry Wine Yeast - 3001
Isolated, studied and selected from the prestigious Côte de Nuits terroir in Burgundy during a three-year research project by Laboratory Burgundia Oenologie in Beaune, France. The goal of this selection program was to find a dominant natural yeast strain from a traditional “cold soak” that would elaborate intense, complex and balanced Pinot Noir varietal character. The 3001 strain stood out from other strains. Wines made with it were noted for fruit and varietal characters that were both elegant and complex. This yeast has moderate nitrogen demands but will benefit from proper nutrition and aeration, these factors becoming increasingly important as your potential alcohol content rises above 13%. This strain is tolerant to standard SO2 additions and low temperatures (down to 12°C/54°F) for a steady and reliable alcoholic fermentation following cold soak. The 3001 yeast is specifically for high quality cold soak Pinot Noir destined for aging. Download the PDF Download the PDF
$3.19
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Colle Perle
Colle Perle is a hydrolyzed gelatin solution. Primary uses are clarification and the removal of bitter tannins and phenolics. Colle Perle flocculates and settles well. Desirable aromas and flavors are retained while harsh characters are removed. It is particularly useful to optimize potential of hard pressed product. In white wines it can be used in conjunction with bentonite to compact lees. Dosage - Applied at a rate of 4 ml / gal. Usage: Juice - Dilute Colle Perle 1:1 in water. Add at the beginning of cold settling and mix evenly and completely throughout the juice. When used in juice Colle Perle should be used in conjunction with bentonite or Gelocolle to improve settling. Racking should be done after 1 week. Wine in Aging - Dilute Colle Perle 1:1 in water. Stir vigorously into the wine to ensure thorough distribution. Racking should be done after 1 week. Filtration is possible 48-72 hours after fining with Colle Perle.
$5.99
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CellarScience® BOUQUET Dry Wine Yeast | Premium Wine Yeast
Produces ß-glucosidase to cleave terpenes Floral, Rose, Citrus flavors Will not produce volatile phenols Best choice for Muscat/Moscato & Gewurztraminer. Also great for Sauvignon Blanc, Riesling and Viognier Those floral, rose, citrus, and stone fruit aromatics are bound all up in terpense in your grape skins and you know, they would really like to get out. It's your job to free them, package them in a bottle, and eventually let them waft out of a wine glass and into the nasal cavity of someone who appreciates excellence. We can help you do this. If you are making a higly aromatic white such as Muscat, Gewürztraminer, Viognier, Sauvignon Blanc or Riesling this is the ideal yeast. BOUQUET is known for its production of the enzyme ß-glucosidase which liberates aromatic compounds by cleaving terpenes from the sugars that bind them and releasing their goodness. This yeast will turn these certain grape varietals from ordinary white wines to highly aromatic, very special white wines that smell and taste amazing. The type of wine where 'stuff' wafts out of the glass! Also interesting is that most yeasts have the potential to produce phenolic off flavors, which in high quantities produce a paint like aroma (yuck!), if the conditions are less than ideal. However, BOUQUET is POF (phenolic off flavors) negative and will synthesize phenolic off flavors, eliminating that risk. This is a great yeast to co-ferment with Luscious for added complexity. Additional Fermfed nutrient is recommended at the start of fermentation due to the short lag phase of this strain. Due to such a rapid period of growth, the yeast cells require higher levels of nutrients to ensure a healthy fermentation. If you have had your wine tested and know your Yeast Available Nitrogen (YAN) follow our CellarScience nutrient feeding schedule accordingly. If you don't know your YAN we recommend hydrating with Fermstart, feeding with FermFed at the onset of fermentation and feeding again with regular Fermfed after 1/3 sugar depletion. Normally the feeding at the onset of fermentation would be with Fermfed DAP free but in this case BOUQUET can use the extra DAP kick that Fermfed provides. Start Time: Fast Alcohol tolerance: 14% Nitrogen demand: Very High Yan Requirement @ 23 Brix: 340 ppm Production of Volatile Acidity: Low Production of SO2: Average Cap/Foaming: Average Ease to Ferment with MLF: Low Malic Acid Consumption: Average Killer Factor: Positive (though is able to coferment with Luscious) Yeast Type: Cerevisiae Optimal Fermentation Temp: 50–80°F Proper yeast hydration helps ensure a healthy fermentation. For every gram of yeast, mix .25 g of FermStart yeast nutrient with 25 ml of sterilized tap water between 104–106°F/40–41°C. When water reaches 104°F/40°C, sprinkle yeast into water and stir gently. Allow the slurry to stand undisturbed for 15 minutes and then stir again. For every gram of yeast used add 25 ml of clean must to the yeast slurry and let stand 15–20 minutes. If necessary, use additional must to adjust yeast slurry to within 18°F of must temp before pitching. For a complete nutrient schedule sufficient for most fermentations, add 1.5 g of FermFed DAP Free per gallon of must at the first sign of fermentation and 1 g of FermFed per gallon of must after 1/3 sugar depletion. Download the PDF
$1.79
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CellarScience® CITRUS Dry Wine Yeast | Premium Wine Yeast
Cleaves (Chops!) thiols releasing citrus, passionfruit, grapefruit, floral flavors Ferment at 58-61 for maximum enzymatic activity #1 Choice for Sauvinon Blanc. Also good for Viognier Oh thiols, you elusive magical compound. Nice try hiding behind Cysteine-4mmp, but CITRUS sees you. Cleaving thiols from other compounds is what CITRUS does, releasing the classic citrus, lime, passionfruit, and floral flavors that help separate styles like Sauvignon Blanc and Viognier from ordinary white table wine. Also can be used with Chardonnay , other whites, and is great for Rose. CITRUS can ferment at cooler temperatures but the enzymatic cleaving activity is highest at around 56-60F. So if you like Zesty Grapefruit, lime, lemon peel, floral, and passionfruit flavors, CITRUS may be your yeast. This yeast is good and perserving acidity so if you are working with whites from a warmer region that can be particularly helpful. More on Thiols: Thiols are organic sulphur compounds that are resonsible for the most prized flavors in many white wines. 4mmp (black current), 3MH (Passion fruit, Grapefruit and Citrus) and 3MHA (Tropical Passionfruit, Rose) Start Time: Average Alcohol tolerance: 14%+ Nitrogen Demand: low Production of volatile acidity: Average Production of H2S: Average Production of SO2: Low Ease to Ferment with MLF: Good Optimal Fermentation Temp: 53–73°F (Ideal for enzymatic activity: 56–60°F) Proper yeast hydration helps ensure a healthy fermentation. For every gram of yeast, mix .25 g of FermStart yeast nutrient with 25 ml of sterilized tap water between 104–106°F/40–41°C. When water reaches 104°F/40°C, sprinkle yeast into water and stir gently. Allow the slurry to stand undisturbed for 15 minutes and then stir again. For every gram of yeast used add 25 ml of clean must to the yeast slurry and let stand 15–20 minutes. If necessary, use additional must to adjust yeast slurry to within 18°F of must temp before pitching. For a complete nutrient schedule sufficient for most fermentations, add 1.5 g of FermFed DAP Free per gallon of must at the first sign of fermentation and 1 g of FermFed per gallon of must after 1/3 sugar depletion. Download the PDF
$1.79
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Scottzyme HC
Scottzyme HC is a blend of assorted enzymes designed to increase yield in apple, pear, stone fruits, and wetter grapes (such as concords). This enzyme will assist in breaking down the fruit you work with to help extract more flavor and juice, as well as improving filterability and overall clarity. This Scottzyme works best in conjunction with PEC5L.
$13.99
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CellarScience® LiquiBody | Liquid Gum Arabic | Adds Perceived Sweetness and Mouthfeel | Helps Lock In Color
Adds mouthfeel and body to wines, seltzers, ciders, etc. Adds perceived sweetness without the concerns of adding residual sugar Helps lock in color by keeping anthocyanins in suspension in red wines Reduces the formation of tartrate crystals in white wine Makes bubbles in sparkling wine rise slower enhancing the appearance LiquiBody by CellarScience is a specialized, pre-liquefied Gum Arabic preparation that adds body and perceived sweetness while stabilizing color and smoothing tannic astringency. LiquiBody is made from high molecular weight polysaccharides which adds the perception of sweetness without having to stabilize residual sugar in your wine. The ability to add body and a little perceived sweetness has many applications. LiquiBody helps keep anthocyanin color compounds in solution, preventing them from precipitating out in the bottle. It is also particularly useful to help keep tartrates in solution when cold stabilization of white wine is not possible. Popular Uses LiquiBody works really well in hard seltzers to add body and a slight sweetness. LiquiBody is added to sparkling wines to improve mouthfeel while increasing the appearance and fineness of the bubbles. Add perceived sweetness to any wine in your lineup to appeal to a larger portion of the population. Filtering Add after rough filtration is finished and before or after sterile filtration. LiquiBody is suitable for use with a sterile membrane filter if your wine is very clean and you have prefiltered. If your wine is not prefiltered, and you already suspect you may have issues with sterile filtration, do not use LiquiBody. Dosage: LiquiBody is stabilized with potassium bisulfite which will add less than 1 ppm of SO2 into your final wine. Use: Add 0.75 to 5 mL per gallon. Perform bench trials to determine optimal usage or start with a dosage of 2 mL per gallon and adjust as needed on future batches. Works best at a temperature range between 50-68ºF and a pH of 4 to 5.5. Additional Notes: Once opened, partial bottles of LiquiBody should be refrigerated and used within 30 days. If a container is left open for longer than the suggested use, you can add 1000 ppm of SO2 to extend its life span.
$1.99
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CellarScience® FRESH Dry Wine Yeast | Premium Wine Yeast
Producer of fresh fruit aromas/flavors Best choice for fruit forward wines Best choice for ciders Best choice for Roses Ability for ferment cooler Strong fermenter FRESH—well the name says it all. The perfect choice for fermenting fruit forward whites, roses, ciders, and meads. Because FRESH is a Bayanus strain it is able to ferment at lower temperatures, a nice option for producing cleaner more focused fruit flavors. Emphasizes stone fruit flavors. We almost named it Beauty and the Beast because once it starts fermenting it doesn't stop. Super easy to ferment with lower nutrient needs and a a very high alochol tolerance up to 16%. Many cider producers like this yeast for its ability to add those fresh and fruity flavors. Although easy to ferment, we still recommend our CellarScience nutrient regimen of Fermstart, FermFed DAP Free, and FermFed to increase fruit and floral flavors, while avoiding H2S production that can mask fruit. Start Time: Fast Alcohol tolerance: 16% Nitrogen demand: low YAN Requirement @ 23 Brix: 225 ppm Production of volatile acidity: Very Low Production of SO2: Low Cap/Foaming: Very low Ease to Ferment with MLF: Average Malic Consumption: High Yeast Type: Bayanus Optimal Fermentation Temp: 50–80°F Proper yeast hydration helps ensure a healthy fermentation. For every gram of yeast, mix .25 g of FermStart yeast nutrient with 25 ml of sterilized tap water between 104–106°F/40–41°C. When water reaches 104°F/40°C, sprinkle yeast into water and stir gently. Allow the slurry to stand undisturbed for 15 minutes and then stir again. For every gram of yeast used add 25 ml of clean must to the yeast slurry and let stand 15–20 minutes. If necessary, use additional must to adjust yeast slurry to within 18°F of must temp before pitching. For a complete nutrient schedule sufficient for most fermentations, add 1.5 g of FermFed DAP Free per gallon of must at the first sign of fermentation and 1 g of FermFed per gallon of must after 1/3 sugar depletion. Download the PDF
$1.79
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Scottzyme KS | For Difficult Wines When Pec5L is Not Enough
cottzyme KS – High-Power Enzyme for Complex Pectin Breakdown in Red, White, and Problem Wines Breaks down complex, highly esterified pectins that standard pectinases cannot Enhances clarification, settling, and filterability in challenging juices and wines Boosts juice and wine yield by improving extraction from thick-skinned or high-pectin fruit Ideal for problem fermentations or hazy wines that resist fining and filtration Performs well at low temperatures and in a broad pH range Scottzyme KS is a specialized pectolytic enzyme designed to break down complex pectin structures found in high-pectin varietals and difficult ferments. While standard enzymes like PEC5L target simple soluble pectins, KS is formulated with enhanced side-chain cleaving activity that attacks esterified pectins and heavily branched structures. This makes it particularly effective on cultivars like Pinot Gris, Riesling, Gewürztraminer, Muscat, and in juice or wine where haze persists despite prior enzymatic treatment. KS improves clarification, tightens lees, increases press and wine yields, and boosts filtration efficiency—especially in wines that defy typical settling protocols. Comparison to Scottzyme PEC5L: Scottzyme PEC5L is a fast-acting general-purpose pectinase for typical clarification tasks, such as settling and flotation of white and rosé juices. It’s ideal for clean juice production from standard grapes and most fruit wines. In contrast, KS is the go-to choice when PEC5L isn’t enough—it’s stronger on stubborn, esterified pectins and delivers better results with problematic varieties or ferments that remain hazy even after PEC5L. While PEC5L is excellent for fast juice prep, KS excels in the most difficult cases, including post-fermentation haze and challenging press fractions. Protocol Dilute Scottzyme KS in 10 times its volume of chlorine-free water or juice. Add to must, juice, or wine and mix well. Suitable for use before or after fermentation. Do not add simultaneously with bentonite or high SO₂. Works effectively at 10–20°C. Usage Rates Recommended dosage: 1.5–4.0 mL per 1000 lb of fruit or 0.075–0.2 mL per gallon = approximately 0.02–0.05 mL per liter Use lower rates for moderate haze and extended contact time. Use higher rates in cold settling, high-pectin juices, or persistent post-fermentation hazes. Allow 4–24 hours of contact time depending on application.
$14.99
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ProElif QA23 Encapsulated Wine Yeast (83 g)
ProElif QA23 is a double encapsulated yeast product developed by Proenol for secondary fermentations. The yeast cells are double encapsulated in an alginate bead. The beads can be directly inoculated into the bottle (eliminating the need to prepare a starter culture). This helps ensure control of the number of cells per bottle. Upon fermentation completion, the beads have a greater density than the wine and will quickly drop to the neck of the bottle when inverted. The beads accumulate more tightly than traditional riddling, therefore less wine is lost during disgorging. Traditional freezing and disgorging methods are used to finish the process. The use of ProElif QA23 results in a fresh sparkling wine. If greater yeast character is desired, you may make changes to the base wine with this in mind. For example, ProElif QA23 has been used with Opti-WHITE treated base wine with good results. The base wine must be stable to avoid agglomeration of the beads which could cause subsequent difficulty during disgorging. All of these parameters act in synergy with one another. It is critical to manage them together. If one parameter is over the limit, try to compensate with the others or ferment at a higher temperature. Use at a rate of 2g/L. For full directions see the handout in the documents tab above. FOR PROELIF QA23 TO BE SUCCESSFUL, THE BASE WINE SHOULD FALL WITHIN THESE PARAMETERS: Alcohol ≤ 11.5% (v/v) Free SO2 ≤ 15 mg/L pH ≥ 3.0 Free Assimilable Nitrogen ≥ 100 mg/L Calcium ≤ 80 mg/L Protein Stability = stable Tartrate Stability = stable Fermentation Temperature > 12°C(54°F) Recommended Dosage 1.5-2 g/L 1.0-1.5g/750 mL bottle
$40.99
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Nutrient Vit End | Fermentation Nutrient for End of Fermentation
Vit End – Lallemand Yeast Nutrient for Securing Fermentation Completion Supports yeast vitality during the final stages of alcoholic fermentation Provides essential vitamins, minerals, and survival factors to avoid sluggish finishes Reduces the risk of stuck fermentation by reactivating stressed or nutrient-starved yeast Enhances sugar-to-ethanol conversion efficiency for cleaner fermentation ends More targeted than general nutrients due to its late-fermentation formulation Vit End is a specialized nutrient developed by Lallemand for use at the end of alcoholic fermentation, when yeast cells are most vulnerable to nutrient depletion, ethanol toxicity, and osmotic stress. Unlike standard yeast nutrients formulated for the growth phase, Vit End is designed to support cell survival, membrane integrity, and residual sugar metabolism. It contains inactivated yeast rich in survival factors, specific vitamins, minerals, and sterols that help re-energize exhausted yeast populations, allowing them to finish fermentation smoothly. Wines showing signs of slowing kinetics, high residual sugar, or difficult fermentation conditions benefit from the targeted support Vit End provides. Protocol Suspend Vit End in ten times its weight of clean must or wine at 20–25°C. Stir thoroughly to dissolve. Add when fermentation is slowing (often near 0–5°Brix) or when signs of yeast stress appear. Mix well to ensure even distribution. Do not add simultaneously with bentonite or sulfites. Usage Rates Recommended dosage: 20–40 grams per hectoliter = 0.2–0.4 grams per liter = 0.76–1.5 grams per gallon Use 20 g/hL in moderate stress conditions. Increase to 40 g/hL in fermentations that are near-stuck, have high residual sugar, or show signs of yeast stress. Vit End can also be used proactively in fermentations known to be high-risk due to low YAN, high sugar, or challenging varietals.
$3.29
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