Ingredients

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. Click here for a PDF of the MoreWine Manual on re-hydrating wine yeast. Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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Wine Conditioner is a combination sugar/sorbate solution for adding to a fermented wine in order to give it some residual sweetness. The sorbate helps prevent fermentation of the sugar that you are adding.  Solution is 76-78° Brix. Directions: Add to taste, usually up to 125ml (4 oz) per 23L (5 gal) of wine.  Wine must be stabilized before adding sweetener.

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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

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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.

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Oak cubes approximately 1 cm square, made from seasoned French Oak and produced in the USA. Oak cubes take longer to impart their character to the wine than chips, but the flavor can be superior due to the higher volume of unexposed wood in the cube. Medium toast is our most popular level and provides good oak flavor and character. Recommended usage is 2 oz to 4 oz per 5 gallons of wine.

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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%. Click here for a PDF of the MoreWine Manual on re-hydrating wine yeast. Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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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. Click here for a PDF of the MoreWine Manual on re-hydrating wine yeast. Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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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. Click here for a PDF of the MoreWine Manual on re-hydrating wine yeast.  

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WineStix are a new form of oak integration for wine, designed to give new barrel flavors with an extraction time similar to cubes. The combination of Short and Long grains result in amazing gradience of flavor similar to barrels, while extracting significantly quicker! These are Medium Plus toast North American Oak staves, and depending on the wine, will impart flavors of roasted coffee, spice, nutmeg, honey, light chocolate, and hints of leather. This is a two pack of WineStix, sized specifically for a 5-6 gallon carboy of wine. WineStix will easily fit through the mouth of a glass carboy, and can be attached to a string via the drilled hole for easy removal! 1" W x 8.5" Long One carboy Winestix will treat 5-6 gallons of wine.  

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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.

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Oak cubes approximately 1 cm square, made from seasoned American Oak and produced in the USA. Oak cubes take longer to impart their character to the wine than chips, but the flavor can be superior due to the higher volume of unexposed wood in the cube. Medium toast is our most popular level and provides good oak flavor and character. Recommended usage is 2 oz to 4 oz per 5 gallons of wine.

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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%. Click here for a PDF of the MoreWine Manual on re-hydrating wine yeast. Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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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.

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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%. Click here for a PDF of the MoreWine Manual on re-hydrating wine yeast. Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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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%. Click here for a PDF of the MoreWine Manual on re-hydrating wine yeast. Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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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.   Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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Calcium carbonate is used to reduce the acidity of wine. It does not require cold-stabilization to force complete precipitation, as does potassium carbonate. However, calcium carbonate is more likely to affect the flavor than potassium carbonate, and may take a few months to fully precipitate. One-quarter ounce (about 4 teaspoons) of calcium carbonate reduces acidity in one gallon by about 0.25%. Foaming may occur because of the production of CO2. Do not use more than one ounce per gallon. Wait 24 hours and rack wine. Calcium carbonate is also used in beer to increase the temporary hardness of water. Traditionally used in English stouts, pale ales and bitters. Usage: Usage varies with acid level Common name: Chalk

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WineStix are a new form of oak integration for wine, designed to give new barrel flavors with an extraction time similar to cubes. The combination of Short and Long grains result in amazing gradience of flavor similar to barrels, while extracting significantly quicker! These are Light toast French Oak staves, and depending on the wine, will impart flavors of gentle spices, cloves, cinnamon, vanilla, along with some rounding and structuring of the wine. This is a two pack of WineStix, sized specifically for a 5-6 gallon carboy of wine. WineStix will easily fit through the mouth of a glass carboy, and can be attached to a string via the drilled hole for easy removal! One carboy Winestix will treat 5-6 gallons of wine.

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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.  

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A non-soluble clarifier that removes both haze causing polyphenols as well as yeast cells. Mix 2 Tbls (or 5 g) with one cup of sanitized warm water and gently stir into five gallons beer. Let stand for a few days and rack off. Polyclar VT is a coarser grade of PVPP (140 micron particle size), optimized for addition to vessels, where faster settling is required. The larger particle size also facilitates settling of the stabilizer, allowing the majority of the product to be left behind with the lees at racking. A typical contact time of between 3 to 10 days is required, although there are no adverse effects from leaving Polyclar in contact with the wine for longer periods. For wine use .5 to 2.5 grams per gallon depending upon severity of problem and desired affect. A rough approximate of weight is 1 tsp = 1.1 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.

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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.   Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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Heavy Toast for Red Wines where you want the rich, carmelized, carbonized oak flavor. Nice to add as a small addition after having added your regular addition of medium or medium plus oak. Manufactured by StaVin. Cubes have a longer contact time than traditional chips do, which make them better for long-term aging of wines and beers. Also, longer contact time means longer extraction of flavors (3-6 months), which leads to a more complex combination of flavors. Chips are usually done giving flavor after a week, there by contributing a harsh, flat oak flavor. Our cubes are fires toasted and cut by Stavin, a leading supplier of high-quality oak alternatives to top commercial wineries.

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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.   Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.

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Oak chips made from seasoned French Oak, produced in the USA. Screened to remove dust and small particles. Heavy toast is stronger and more intense than medium toast, it is a different character of flavor, not just a way to get the oak flavor faster. Recommended usage is 2-4 grams per Liter of wine.

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