Yeast & Bacteria

Shape Your Wine's Flavor Profile & Complexity

Microbes are the true winemakers. By selecting the right premium yeast strains and malolactic bacteria, you can guide fermentation to highlight unique aromas, soften acidity, and build the perfect mouthfeel for your desired style.

Customize Unique Aromas: Different yeast strains unlock distinct fruity, floral, or spicy characteristics hiding inside your juice.
Reliable Fermentation: Ensure a clean, complete conversion of sugars into alcohol and CO2 without stalling.
Soften Harsh Acidity: Use Malolactic bacteria to convert sharp, tart malic acid into smooth, palatable lactic acid.
Enhance Mouthfeel: Add crucial body, roundness, and depth to your red wines and specific white wine styles.

Wine Yeast and Bacteria

1

Select Your Strain

Match your yeast and bacteria to your specific grape varietal and the final wine style you want to achieve.

2

Pitch & Inoculate

Introduce the microbes into your must at the correct temperature to ensure a healthy, active start to your fermentation.

3

Transform & Develop

Watch as sugars convert to alcohol and sharp acids soften, ultimately bringing your wine's complex character to life.

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Malolactic Bacteria

Malolactic Bacteria

Wine Fermentation Additives

Wine Fermentation Additives

Wine Yeast

Wine Yeast

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White Labs Yeast | WLP675 Malolactic Culture | PurePitch® Next Generation | Industry Leading Viability

WLP675 is a direct pitch liquid Malolactic culture for 6 gallons of wine. This ML culture from White Labs is specially designed to meet the needs of home winemakers. It is tolerant of a wide range of temperatures and pHs and will not have a significant impact on flavor, aroma or mouthfeel. Vital Stats: pH tolerant down to 3.0 Low temperature tolerant down to 55°F Alcohol tolerant to 15% ABV Free SO2 should be less than 10ppm Please Note: White Labs recommends pitching this strain at around 5 Brix remaining sugar in your primary fermentation. MoreWine! recommends that you follow the manufacturer's suggestion in this regard, but that you still rack off your gross lees withing 48hr of pressing and that you continue to stir the fine lees twice a week until the end of MLF.

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$14.99
CellarScience® Universal Breathable Bung | Wine Barrels
1051 reviews

Effortless Bung Removal: The ridge design ensures easy and hassle-free removal of the bung, simplifying barrel management. Effective Airlock System: Acts as an airlock, allowing CO2 to escape while keeping oxygen out, making it perfect for fermentation processes. Versatile Fit: Compatible with 30- and 60-gallon barrels, Variable Volume tanks, and 2" tri-clamp ferrules, offering flexibility across various setups. Multi-Size Replacement: Replaces stopper sizes #10, #11, and #12, with precise measurements for a perfect fit and easy assembly. We recently discovered this premium breathable silicone barrel bung and were immediately impressed with its robust design and features. To start with, the ridge really helps make bung removal effortless. The bung acts as an airlock and allows the release of CO2 while maintaining a seal against oxygen coming in. This makes the bung ideal for alcoholic or malolactic fermentation in barrels or tanks. Fits 30- and 60-gallon barrels as well as the hole in the lid of most Variable Volume tanks! Also fits perfectly in a 2" tri-clamp ferrule Replaces Stopper Sizes #10 , #11, #12 Stopper Measurements: 1.65" x 2.19" (42 mm x 55.5 mm) The flapper stopper protrudes roughly 2.5" from the stopper to allow for easy assembly Other available sizes include the Breathable Carboy Bung and the Universal Breathable Bung. All three size options can be purchased in one complete bundle with the Breather Bung Pack.

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$10.99
ProRestart Uvaferm 43 Encapsulated Wine Yeast - (83 g) & 1 mesh bag
1 review

ProRestart and ProDessert contain yeast cells encapsulated within Alginate (natural polysaccharide extracted from seaweed) that are also acclimatized to alcohol and other harsh conditions. Unlike regular dry yeast, our encapsulated yeast are pre-conditioned to harsh conditions such as high sugars or high alcohol. They are a great choice for finishing stuck fermentations or fermenting dessert wines. To use, the beads are placed in a nylon bag and suspended in the ferment. The vast majority of the yeast stay trapped within the alginate beads. When they have completed their task, the bags are removed from the wine with few residual yeast cells from the culture being left behind. Though there may still be indigenous yeast present, use of the encapsulated yeast significantly reduces the amount of SO2, sorbate or tank chilling that are necessary to arrest fermentation. Sanitizable weights, such as stainless fittings or marbles, are placed in the bag to keep the bag submersed throughout the fermenation process. 83 Grams will treat 100L or 30 gallons of stuck wine. Works quickly due to preconditioning and direct addition into a stuck or sluggish fermentation. This is much, much easier than traditional restart methods. Decreases spoilage risks due to its rapid fermentative activity and helps avoid excessive SO2 additions. Decreases risks related to color loss from oxidation. Preserves the flavor of the wine due to rapid sugar consumption without volatile acidity increase or other spoilage problems. Use 83g per 30 gallons. Culture can be transferred to next barrel after first barrel is finished. Comes with nylon mesh bag and full set of instructions.

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$54.99
CellarScience® CellarTan F | Fermentation Tannin Blend | Stabilizes Color | Softens Tannin Profile

Add to Red Wine Fermentation on the skin Binds with anthocyanins and stabilizes color Improves mouthfeel and body Mix of both ellagic and proanthocyanidin tannins CellarTan F is designed to be added to red wine fermentations where it binds color, improves body and mouthfeel, and softens the overall tannin profile. Used during the early stages of fermentation when anthocyanins are being released from the grape skin in the presence of alcohol and need to be stabilized for long term color retention. CellarTan F is a combination of ellagic tannins and proanthocyanidin tannins. Ellagic tannins are hydrolysable oak tannins that break down in wine. They react with grape skin derived phenolics to form flavono-ellagitannins which are hybrid compounds that play a key role in color stability while also softening the mouthfeel of your wine. Ellagic tannins also have potent antioxidant properties that reduce the need for SO2. Proanthocyanidin tannins, or condensed tannins, also contribute to color stability, taste, and mouthfeel. Through polymerization, anthocyanins cap the end of tannin chains to form stable color throughout the life of your wine. They also increase the body and structure of wine. Use: Dissolve 0.2 to 2 g per gallon (0.05 to 0.5 g per liter) in juice or water. Add to must at least 30 min after any SO2 addition and mix well. If you are unsure where to start within the suggested range, we recommend a dosage of 1 g per gallon (0.25 per liter) and adjust as desired on future fermentations.

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$3.99
CellarScience® Universal Breathable Bung | Plastic Carboys
1051 reviews

Secure Fit: Designed with a ridge and gentle taper to prevent slipping or being sucked in, ensuring a reliable seal during use. Self-Sealing Vent: Equipped with vent holes that allow air to escape but prevent it from entering the fermenter. Easy Maintenance: Simple to clean and sanitize, making it highly convenient for repeated use. Replaces stopper sizes #8 and #9 This CellarScience Bung has a ridge to keep it from getting sucked in and self-sealing vent holes to let air out but not in. They have a gentle taper, so they don’t slip out during use. They are also very easy to clean and sanitize. Replaces Stopper Sizes #8, #9 Stopper Measurements: 1.36" x 1.89" (34.5 mm x 48 mm) The flapper stopper protrudes roughly 2.5" from the stopper to allow for easy assembly Other available sizes include the Breathable Carboy Bung and the Breathable Barrel Bung. All three size options can be purchased in one complete bundle with the Breather Bung Pack.

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$8.79
CellarScience® Red Wonder | Boost Aroma | Lock In Color

Enhances fruit and chocolate-like aromas in red wines Helps stabilize color Our selected blend of SIY's, Ellagic Tannins, and a touch of Gum Arabic Added at the end of fermentation or the beginning of aging Red Wonder was developed to add fruit and chocolate flavor to red wine. It brings the body and richness of sur lie aging with the amazing impact of ellagic finishing tannins. The ellagic tannins in this blend were selected for their ability to impart chocolate flavors into the wine. Red Wonder is a blend of specially inactivated yeast (SIY), elected ellagic tannins, and a little bit of LiquiBody Gum Arabic. In addition to body and flavor this product helps reduce the need for SO2 and also helps to lock in color. You certainly could select an SIY, like our CellarScience Easy Sur Lie and then trial them with different ellagic tannins along with LiquiBody. But we've worked in small wineries and we know you are busy, so we've done that trialing for you and selected the blend that most often turned out really exceptional red wines. Directions: Use at the rate of 0.4 to 1.5 g per gallon of wine. Rehydrate in warm water or wine for 30 minutes and then stir directly into the tank or barrel. Once fully mixed it doesn't need any further stirring. We recommend starting with dosage of 1 g per gal (0.25 g per liter) and adjusting on further batches as needed.

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$2.99
CellarScience® BUBBLY Dry Wine Yeast | Premium Wine Yeast

Really strong and fast fermentations Best strain to ferment out in touch conditions One of the most popular, classic Champagne strains Low nutrient requrements The classic Champagne yeast. With a fast fermentation rate, high alcohol tolerance, and low nutritional requirment it is one of the easiest yeasts to ferment. Allows varietal character to shine through while accentuating stone fruit and citrus. Able to ferment under higher pressures. Does not ferment Malic acid so natrually produces fresh wines with crisp acidity. This makes it a classic choice for fruit wines, meads and ciders. Top choice for doing secondary fermenation in the bottle for natural carbonation. One of the most popular yeast strains in the world. Can handle lower fermentation temperatures. Start Time: Fast Alcohol tolerance: 15% Nitrogen Demand: low Yan Requirement @ 23 Brix: 220 ppm Production of volatile acidity: Low Production of SO2: Low Ease to Ferment with MLF: Good Yeast type: Bayanus Killer Factor: Neutral Optimal Fermentation Temp: 45–90°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

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$1.49
CellarScience® GSH Naturale | Preserves Terpenes & Thiols

Protects against oxidation Preserves Terpenes, Esters, and Thiols (3MH, 3MHA) during aging Reduces need for SO2 Improves color stability CellarScience GSH Naturale was designed for winemakers who want to take advantage of the benefits of Glutathione. Glutathione reduces browning in all wines but is especially useful in whites. In whites with higher levels of terpenes and thiols (e.g. Sauvignon Blanc and Viognier) GSH helps preserve fruity/floral aromas. It is also particularly helpful to produce natural wines or wines with less SO2. How it Works: Quinones are a class of compounds that can degrade wine by causing oxidizing reactions that lead to browning and the loss of desirable varietal flavors. Terpenes and Thiols are particularly prone to interact with Quinones. Instead GSH reacts with Quiniones creating a stable compound that does not lead to browning and a loss of flavor and aroma. GSH is a natural compound found in yeast cells and acts as a natural anti-oxidant that can be used in conjunction with SO2 or by itself in the case where the winemaker chooses to use low or zero quantities of SO2. GSH Naturale contains a high percentage of tripeptide glutathione along with other polysaccharides that have a positive impact on body, flavor, aroma. Usually used in conjunction with SO2 as an additional natural inhibitor of browning, GSH Naturale will have positive impact on color, wine, thiol, esters and terpene content throughout the aging process. Use: Add 0.4 to 1.5 grams per gallon (0.1 to 0.4 g per liter) directly into the wine. We recommend starting with a dosage of 1 g per gallon (0.25 g per liter) and adjusting as desired in future batches.

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$1.99
CellarScience® Easy Sur Lie | Boost Body & Richness

All the benefits of Sur Lie aging without the risks Luxurious, soft mouthfeel Perfect for your big body whites Helps reduce browning Produced from yeast cells and considered an SIY (especially inactivated yeast) CellarScience Easy Sur Lie offers all the benefits of doing a sur lie aging without the risk. Sur lie aging, often also referred to by the French term Battonage, is the process where wine is left on the original lees. or yeast, at the end of fermentation. Battonage specifically refers to the process of stirring lees back into solution over a few weeks to add body and richness to the wine. Exactly how it is done depends on the winemaker. Some choose to leave the wine on the gross lees while some choose to remove the wine quickly from the gross less and then stir up a clean version of the remaining yeast that settles out. Either way, there is some risk in this process of extracting some flavors you don't want while also potentially adding unwanted oxygen into the wine. During Sur lie the yeast cells are breaking down, releasing peptides, mannoproteins, and anti-oxidant amino acid proteins, and other yeast cell compounds. These compounds add that luxurious, soft mouthfeel to wine that is so desired. CellarScience Easy Sur Lie adds these compounds into the wine without having to take the risk and time/cost of doing an actual Sur Lie aging and stirring protocol. Easy Sur Lie also has some extra benefits. It helps prevent the formation of mercaptans, reducing potential sulfur compounds that can mask the full potential of your wine. It also functions as an antioxidant. Yeast at the bottom of naturally carbonated beer bottles is long known as an antioxidant that helps keep packaged beer fresher longer. Easy Sur Lie in your wine works in a similar way, supporting SO2 to help ensure freshness and reduce browning reactions. Can be added at the end of fermentation and throughout the aging process. Use: Mix 1.5 g per gal (0.4 g per liter) for best results. Add at the last stages of fermentation or early in aging for the furthest integration and best results.

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$2.99
Red Star | Cotes des Blanc | Dry Wine Yeast
9 reviews

Also called Epernay II. Produces fine white wines with fruity/estery aromas. A steady, yet moderate to slow fermenter, it is easy to stop fermentation in cases where residual sugar is desired. Recommended for fruit wines, ciders and meads as well. Ferments from 50 to 80 degrees.

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$1.99
CellarScience® Killazyme | Inhibits Lactic Acid Bacteria
1 review

Prevent volatile acidity in fermentation before it happens Add at first signs of a problematic ferment to help limit the production of volatile acidity Avoid a malolactic fermentation (MLF) in White Wines Use as an insurance policy during barrel aging of Red Wines to reduce the risk of volatile acidity CellarScience Killazyme is a lysozyme that is used to control and inhibit gram-positive lactic acid producing bacteria including Oenoccoccus, Pediococcus, and Lactobacillus. This is a tool winemakers can use throughout the winemaking process to limit bacteria contamination and the production of volatile acidity. Killazyme does not affect gram-negative Acetic Acid bacteria nor yeast. Don’t Use Killazyme If You Are Coinoculating Yeast and ML When performing a “secondary” malolactic fermentation (MLF) we want lactic acid Bacteria to convert the harsher malic acid into lactic acid. Mostly MLF fermentations are done sequentially with the sugar fermentation being completed first followed by the MLF fermentation second. If you are doing a co-inoculation of yeast and lactic acid bacteria during the primary ferment, do not use Killazyme. Use Killazyme to Prevent Volatile Acidity in Fermentation Killazyme can be added at the start of fermentation to limit lactic acid bacteria before it happens. Under certain situations lactic acid can use sugar or citric acid which it converts into acetic acid and volatile acidity. Killazyme is effectively used at the start of fermentation when you know or suspect a slow to start fermentation. This might be a result of a cold soak or those ferments relying on native yeast. Once your yeast starts to rip, the potential action of lactic acid bacteria is greatly suppressed and the need for Killazyme is reduced. At the back end of fermentation, slow, struggling fermentations caused by various reasons, such as temperature or high sugar, can cause bacteria to consume sugar and citric to produce acetic acid and volatile acidity. Additionally, if lactic acid bacteria fully converts the available malic acid the bacteria can pivot to sugar and citric product volatile acidity. In a problem ferment where the yeast are already struggling, volatile acidity acts as a double whammy suppressing yeast activity even further. If you suspect a problem finish, based on past experience or current conditions, Killazyme is a great tool to add at the start of fermentation Use Killazyme at First Signs of Problem Finish Killazyme can also be added at the first signs of a problematic ferment to help limit the production of volatile acidity. This reactive addition requires a heavier dosage than a preemptive addition as there is most likely volatile acidity already present. Use Killazyme to Avoid MLF in White Wines When fresh, crisp white wines are desired, Killazyme can be added at the start of a white wine fermentation, or at any point in tank or barrel, to block lactic acid activity and prevent MLF. We still always recommend a sterile filtration for commercial whites before bottling to prevent a later MLF in the bottle. . Killazyme is also great if you are going to be blending whites where one white went through and MLF and the other white did not. Barrel Storage Protection of Reds After MLF is complete and you storing wines in barrel Killazyme is a great insurance policy to reduce the risk of volatile acidity. Use: 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 immediately 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. You can make a 10% solution of Killazyme in water (100 grams per liter of water). However, we find the easiest method is to add the desired dry weight of Killazyme 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.

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$7.99
CellarScience® Enzo Red | Enzyme Blend for Red Wine

Add to red wine fermentations on the skin Releases aroma compounds, anthocyanins for color, and polysaccharides for mouthfeel Reduces necessary contact time / physical interaction normally needed for extraction Pectinase blend that breaks down cellulose and hemicellulose Enzo Red contains a selection of enzymes designed to promote deep, lasting color, structure, and aroma in fine red wines. Enzo Red is a blend of pectinases that will degrade both cellulase and hemicellulase, releasing anthocyanins and desirable skin tannins. It also releases aromatic compounds along with polysaccharides to help contribute to the aroma and body of your red wine. By breaking down pectins, Enzo Red helps with faster clarification and easier downstream filtering. Enzo Red can help to reduce the amount of punch downs or pump overs required. While there is no harm to keeping your existing schedule, it reduces the need for extended skin contact time, helps with extraction when an ideal punch-down schedule can't be maintained, and lessens the amount of time spent in pump over. For pump over in particular, this can be an advantage by lessening the shearing action on seeds that can occur when pumping must. Enzo Red is obtained from aspergillus niger and does not contain the enzymes cinnamyl esterase (production of barnyard flavors) or anthocyanase which is known to produce oxidized color hues in wine. Use: Dilute 0.04 to 0.15 g per gal (0.01 to 0.04 g per liter) into water and add directly into the crushed grapes or must. Perform bench trials to determine optimal usage or start with a dosage of 0.1 g per gal (0.025 g per liter) and adjust as desired on future batches.

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$17.99
Opale 2.0 Dry Wine Yeast (500 g)

The new and improved ICV Opale yeast is a perfect option for rose wines and ciders to bring out exotic and citrus aromas, while maintaining freshness sought after in roses. A QTL yeast with low to no H2S, SO2, and acetaldehyde production. Lalvin ICV Opale 2.0™ exhibits a special ability to produce very low level of H2S and SO2. Moreover, the final level of acetaldehyde fermented with Lalvin ICV Opale 2.0™ will be a good asset to stabilize most wines with moderate SO2 level. Sensory attributes provide exotic, tropical and citrus fruit intensity. Lalvin ICV Opale 2.0™ is a good alternative to other selected wine yeast to obtain more freshness in wine. Specifications: Fermentations Speed: Moderate Glycerol Production: Moderate Lag Phase: Very short Nitrogen Needs: Low Alcohol Tolerance: 16% SO2 Production: Very low Max. Temperature: 86°F Min. Temperature: 59°F Download the PDF Download the PDF

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$63.99
CellarScience® Foam Axe | Anti-Foaming Agent

Due to high demand, the 32 oz, and 1 gallon are 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. Foam Axe by CellarScience is a uniquely formulated anti-foaming agent that increases fermenter capacity and reduces the risk of kettle boil overs. By reducing surface tension, bubbles are Axed before they can form. Foam Axe actually increases head formation in the finished beer by retaining foam forming proteins that would have normally blown off during fermentation. Use: In the fermenter, add 1-2 drops per gallon at the start of fermentation. In the kettle, add 1 drop per gallon before the boil starts to help prevent boil overs. Additional Notes: Foam Axe is made from food-grade silicone and works by breaking up foam particles and dispersing surface tension. Foam Axe settles out of beer prior to bottling or kegging. Store cool and in an environment below 90°F. Do not freeze. The recommended shelf life is 6 months from the date the package is opened.

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$3.99
Red Star | Premier Cuvee | Dry Wine Yeast
6 reviews

Prise de Mousse strain. Fast starting with steady, strong fermentation kinetics. Low foaming action is well suited to barrel fermentations. Clean neutral flavor. Good all-around choice for Reds, Whites and especially Champagnes. Also works well for meads. Alcohol tolerance to 18%. Will also ferment from 50 to 80 degrees.

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$1.79
CellarScience® SilaFine | Beer Fining Agent

SilaFine is an easy-to-use, vegan friendly fining agent that quickly creates crystal clear beer by removing yeast and haze-forming particles. SilaFine is a unique, negatively charged silica sol fining agent that binds with and positively charged haze active proteins and polyphenols as well as yeast cells. SilaFine does not target foam active head forming proteins, leaving beer foam in glass unaffected. Use: Add 10ml or 1 tbsp per 5 gallons of finished beer. Gently rouse the beer to fully disperse the clarifier. Most effective on beer that has been chilled below 39°F. If the beer has not cleared after 24 hours, a second dose can be added. SilaFine should be stored cool, but do not freeze. Whirlpool: SilaFine can also be used in the whirlpool at a rate of 0.5-1ml per gallon to achieve a quicker and more compact sedimentation in the kettle. Additional Notes: SilaFine is based on a special selection of commercial grade amorphous silicon dioxide, also known as silica sol, at a concentration of 30%. Silica sol is known by a few names in brewing including colloidal silica, acidified silicates, silicon dioxide, and silicic acid. Unlike some other silica sols, SilaFine is not treated with aluminum oxide. SilaFine is a pure mineral and complies with Reinheitsgebot German beer purity law. Do not freeze. Store in a cool, dry place away from direct sunlight and heat. The recommended shelf life is 12 months from the date the package is opened. Allergen Free GMO Free

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$3.49
CellarScience® Universal Breathable Bung | Complete Set
1051 reviews

Not sure what bung is right for you? We got your back! Get all the Breathable Bungs with this complete set. Includes: Breathable Carboy Bung Breathable Universal Bung Breathable Barrel Bung Breathable Bung for 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. Also has great application for beer ferments: It will create a vacuum if fermenting wort cools (as opposed to pulling water in from your traditional airlock.) Airtight seal is great for extended fermented lager when CO2 production is still present but very slight. 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) Universal Breathable Bung This CellarScience Bung has a ridge to keep it from getting sucked in and self-sealing vent holes to let air out but not in. They have a gentle taper, so they don’t slip out during use. They are also very easy to clean and sanitize. This a perfect fit for a 1.5” TC ferrules, Fermonsters, and Vintage Shop Plastic carboys. Replaces Stopper Sizes #8, #9. #10 Stopper Measurements: 1.36" x 1.89" (34.5 mm x 48 mm) Breathable Barrel Bung We recently discovered this premium breathable silicone barrel bung and were immediately impressed with its robust design and features. To start with, the ridge really helps make bung removal effortless. The bung acts as an airlock and allows the release of CO2 while maintaining a seal against oxygen coming in. This makes the bung ideal for alcoholic or malolactic fermentation in barrels or tanks. Fits 30- and 60-gallon barrels as well as the hole in the lid of most Variable Volume tanks! Also fits perfectly in a 2" tri-clamp ferrule Replaces Stopper Sizes #10 , #11, #12 Stopper Measurements: 1.65" x 2.19" (42 mm x 55.5 mm) The flapper stopper protrudes roughly 2.5" from the stopper

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$32.99
White Labs Yeast | WLP715 Champagne | Wine, Cider, Mead Yeast | PurePitch® Next Generation | Industry Leading Viability | 150 Billion Cells

Classic yeast that is neutral in character, and a strong fermenter. Great for use in wine, cider and mead allowing the character of the fermentables to become the prominent flavors. PurePitch® Next Generation—now with more yeast, get a foolproof fermentation without a starter! Just twist the cap & pitch! Everything you missed about the vial with the innovation of PurePitch®. Attenuation: 70-90% Flocculation: Low Alcohol Tolerance: 15%+ ABV Optimum Fermentation Temp: 70-75°F Cell Count: 150 Billion For best results we always recommend ordering an ice pack with your liquid yeast. Please Note: When choosing an ice pack option beware that the liquid yeast will not arrive cold even when shipped together. 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.

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$14.99
CellarScience® HAZY Dry Yeast | New England Ale | Premium Beer Yeast

The ideal strain for fermenting expressive New England IPAs or Hazy Pale Ales. Produces a well-balanced tropical fruity ester profile and leaves beer with a hazy appearance. Every batch is PCR tested to ensure contamination free yeast. Dosage: One sachet is enough to treat a 5–6 gallon batch. When calculating for larger batches, use at a rate of 2–3 grams per gallon of wort. We recommend rounding up by one full sachet rather than measuring out the yeast exactly. Direct Pitch or Rehydrate: HAZY yeast is designed to be sprinkled directly onto the surface of your wort with no oxygenation required in the initial fermentation. Our aerobic growth process makes this possible by creating dry yeast with high viability and high sterol levels. HAZY yeast is pre-loaded with essential nutrients to ensure a successful, complete fermentation. While not required, some brewers prefer to rehydrate yeast. To hydrate yeast, first, sanitize the yeast brick and scissors. Use 10 grams of sterilized tap water between 85-95°F (29-35°C) mixed with 0.25 grams of FermStart per gram of yeast. Sprinkle yeast on the water. Allow the slurry to stand undisturbed for 20 minutes, then swirl. Use small amounts of wort to adjust to within 10°F (6°C) of wort temperature before pitching. Ferment between 62-75°F (17-24°C). Optimum Fermentation Temp: 62-75°F Flocculation: Medium-Low Alochol Tolerance: 11-12% ABV Attenuation: 75-80% Similar Strains: WLP066, WY1318 Gluten-free

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$4.49
Lallemand RESKUE™ | For Stuck or Sluggish Ferments | More Effective than Yeast Hulls

Reskue – Yeast Derivative Nutrient for Detoxifying and Restarting Stuck Fermentations Detoxifies fermentations by adsorbing toxic fatty acids that inhibit yeast and bacteria Restores sugar uptake by clearing compounds that interfere with yeast membrane function Reinvigorates both sluggish or stuck alcoholic and malolactic fermentations Contains no measurable YAN, so it won't impact nutrient balance or promote excess yeast growth More effective than standard yeast hulls due to its targeted high-capacity bioadsorptive properties Reskue is a specific inactivated yeast derivative developed by Lallemand to help winemakers recover from sluggish or stuck fermentations. Unlike generic yeast hulls, which offer general detoxification support, Reskue is produced using a proprietary process that dramatically enhances its surface area and binding capacity for fermentation-inhibiting compounds—especially short- and medium-chain fatty acids. These compounds are produced by stressed yeast and can block sugar transport, stalling fermentation. Reskue removes them more efficiently than standard hulls, helping yeast and bacteria resume healthy metabolic activity. This makes Reskue particularly valuable not only in stuck alcoholic fermentations but also in challenging malolactic fermentations where similar toxins can block bacterial performance. Protocol Suspend Reskue in 10 times its weight of clean water at 30–37°C (86–98°F). Stir thoroughly and let sit for 20 minutes before adding to the fermentation. Mix evenly into the tank. In stuck alcoholic fermentations, allow Reskue to settle for 48 hours, then rack off before initiating the restart protocol. Usage Rates Recommended dosage: 30–40 grams per hectoliter = 0.3–0.4 grams per liter = 1.14–1.5 grams per gallon Use 30 g/hL for moderate ferment stress and 40 g/hL when conditions are severe or when toxic byproducts are strongly suspected. Reskue is not a nutrient supplement—it provides virtually no YAN—and should be used as a detoxification tool to restore a viable fermentation environment.nd dry.

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$74.99
Lallemand OPTI-MUM RED™ | Inactive Yeast | Added to Red Wines at Crush | Increase Mouthfeel | Lock in Color

Yeast Derivative Nutrient - For increased color stability, integrated mouthfeel and roundness in red wines; OMRI listed OPTI-MUM RED™ helps to produce wines with intense color, a rounder, softer mouthfeel, and a decreased perception of astringency. Early additions of OPTI-MUM RED lead to more stable color due to reactions between early-released color molecules (anthocyanins), phenolic compounds (tannins), and the polysaccharides from OPTI-MUM RED Reduces the perception of green, astringent tannins in cool-climate or low maturity fruit Reduces the sensation of hotness in high alcohol wines Can help soften mouthfeel The yeast strain behind OPTI-MUM RED was specifically selected and fully autolyzed for its highly reactive high molecular weight polysaccharides and oligosaccharides Frequently used in: Medium-bodied reds, full-bodied reds, cool-climate reds, high maturity grapes When to add: Directly to grapes or at first mixing Provides: High molecular weight polysaccharides and oligosaccharides that contribute to color stability, volume, and softness YAN contribution: Insignificant Recommended Dosage: 20-40 g/hL (1.7-3.3 lb/1000 gal) Usage: Mix OPTI-MUM RED in 10 times its weight of water or juice and add directly to the grapes or must. If adding later in fermentation, add during a pump-over or during tank mixings. This product is mostly soluble. Stir to maintain suspension before and during addition. Storage: Dated expiration. Store in a cool, dry environment at 18°C (65°F). Once opened, keep tightly sealed and dry.

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$75.99
CellarScience® Glucabuster | Mashing Enzyme

CellarScience Glucabuster improves lautering and yield and makes any downstream filtering easier. First the highly concentrated β-glucanase break down the glucan formation that can lead to stuck mashes and slow run off. Then the included Xylanase and Cellulase break down the polysaccharide chains of arabinoxylan and cellulose. Together, all three enzymes help keep todays challenging mashes flowing right. Use: Add 1/4 tsp per 5-gallon batch at mash-in. Glucabuster works in a range of 120-185°F and ideally at a pH range of 4.7-7.0. Additional Notes: Endosperm cell walls are made up of non-starch polysaccharides, of which, in barley, β-glucans account for 75% with arabinoxylan (pentosan) and cellulose accounting for most of the rest. In wheat, the arabinoxylan content is higher. Glucabuster is composed of the cell wall hydrolases β-glucanase, xylanase, and cellulase, which break down the β-14 bonds in these polysaccharides. These enzymes can be equally important to their more famous starch degradation enzymes, α-Amylase and β-Amylase. Glucanase, xylanase, and cellulase are naturally found in malt but decrease during the kilning stage of malting. Depending on your recipe, adding these enzymes is important to assist with lautering and later with filtering. Refrigeration is recommended, but store at least below 70°F. The recommended shelf life is 12 months from the date the package is opened.

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$4.99
Lallemand PURE-LEES DELICACY™ | Mannoprotein | Smooths Tannins | Preserves Fruit

Pure Lees Delicacy – Lallemand Yeast Derivative to Smooth Tannins & Preserve Fruit Smooths harsh tannins and green profiles for refined mouthfeel Enhances fruit intensity and wine length with noticeable sensory impact Stabilizes colloidal structure, improving clarity and filterability Delivers fast results in days, mimicking long lees aging without extended contact Leverages HPH™ disrupted whole-yeast biomass for superior phenolic coating Pure Lees Delicacy is a premium inactivated yeast derivative crafted using Lallemand’s advanced High Pressure Homogenization (HPH™) method. This process liberates mannoproteins and polysaccharides that form soluble complexes with phenolic compounds, gently smoothing tannins while preserving vibrant fruit and structural integrity. Applied at the end of alcoholic fermentation or pre‑bottling, it delivers the quality of extended lees contact in just days, producing red wines with softer texture, richer palate weight, and enhanced length. Unlike generic lees products, Pure Lees Delicacy actively interacts with phenolics to refine texture without diluting variety character, making it ideal for reds seeking elegance and balance. Protocol Suspend Pure Lees Delicacy in ten times its weight of clean wine or water (e.g., 1 kg in 10 L) at room temperature. Stir gently until fully dispersed. Add to wine toward the end of alcoholic fermentation or before bottling, then mix thoroughly. Allow at least two days of contact before racking. A longer contact period (up to several weeks) may deepen texture refinement depending on wine style. Usage Rates Recommended dosage: 20–40 g per hectoliter = 0.2–0.4 g per liter = 0.76–1.5 g per gallon

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$22.99
CellarScience® ORIGIN Dry Yeast | Hard Seltzer Yeast | Distillers Yeast

The ideal yeast for producing a very neutral, clean base for hard seltzers, canned cocktails, further distillation, etc. Works with malt or sugar fermentations Includes nutrients and pH buffers to keep fermentation humming to finish Able to handle high levels of ethanol and osmotic pressure Ferments clean up to 80°F Our motto is to Empower Your Creative Vision. Origin is a unique style of yeast used to create a neutral alcoholic base that acts as the Origin upon which you layer other flavors. Perfect for Hard Seltzers, Canned Cocktails, and whatever else you can dream up. Also great for neutral washes designed for distillation and tough to ferment honey-based mead fermentations. Works on both sugar, honey, and malt-based fermentations. The secret sauce is a very neutral, high alcohol tolerant yeast combined with nutrients and pH buffers. The non-urea-based nutrients help the yeast in simple sugar mediums naturally low in nutrients. pH buffers ensure a high enough pH to allow the yeast to run to completion in even the toughest of situations. The yeast strain used in Origin is a very low producer of H2S and fruity esters resulting in a clean final product. Origin stays clean at higher fermentation temperatures up to 80°F. Origin could technically be called a Turbo Yeast being packed with nutrients. However, we don't like that association as many turbo Yeasts are not selected and assembled for quality and flavor but rather price and speed. Turbo Yeasts also do not include pH buffers. Origin will work with all commonly used sugars, including sucrose, dextrose, and liquid invert sugar. When fermenting wort from malted barley, use our Brutzyme Glucoamylase Enzyme to break down α-1,4 and α-1,6 glycosidic linkages of starch, dextrins, and oligosaccharides for a drier, more fully attenuated final product. Pilot batches should always be performed to find the optimum final product for your further vision. Directions: Add 10 to 20 g per gal (2.5 to 5 g per liter) directly into your fermentation with no hydration required. Ferment between 65 to 80°F (18-27°C). We recommend starting with a dosage of 15 g per gal (4 g per liter) and adjusting as desired in future batches.

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$7.99
Lallemand REDStyle™ | Added to Red Wine at Crush | Blend of Pectinase Enzymes and Inactivated Yest

Due to high demand, the 2.5 kg size 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. RedStyle – Lallemand Maceration Aid for Enhanced Color, Structure & Tannin Smoothness Enhances color intensity and stability through polysaccharide–polyphenol complex formation Improves tannin integration, reducing harshness and green characters Boosts juice extraction and clarity during maceration with built-in pectinase Builds fuller body and smoother mouthfeel without overwriting varietal character Offers dual-action benefits (enzyme + yeast derivative), outperforming generic macerators RedStyle combines a gentle pectinase enzyme with a specially selected and inactivated wine yeast derivative rich in soluble polysaccharides. When applied during red grape maceration, it breaks down pulp and skin walls—including pectin—enhancing juice yield and extraction. The released polysaccharides bind with anthocyanins and tannins, promoting richer color, more refined tannin structure, and a round, balanced body. The integrated enzyme also improves clarification and filterability, helping winemakers craft wines that are visually appealing, texturally complete, and varietally expressive. Protocol Suspend RedStyle in ten times its weight of clean must or water (e.g., 1 kg in 10 L). Stir thoroughly to ensure full dispersion. Add directly after crushing, either into the crusher, at the start of filling, or during initial pump-overs. Maintain suspension during addition to ensure even distribution. Usage Rates Recommended dosage: 30 g per hectoliter = 0.3 g per liter = 1.14 g per gallon For dosage expressed per ton of grapes: 227 g per ton (≈ 0.5 lb/ton). This balanced rate delivers optimal color stabilization, tannin smoothing, and maceration performance for most red wine styles.

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$28.99
CellarScience® BAJA Dry Yeast | Mexican Lager | Premium Beer Yeast

BAJA is a versatile lager strain with neutral character and finishes dry Perfect for Mexican-style light lagers, dark lagers, and cold IPAs Designed to be sprinkled directly onto the surface of your wort with no pre-oxygenation before pitching required Ferment between 50-56°F CellarScience offers high-quality yeast that is easy to use, consistent, and available at a tremendous value If you're looking for a cold fermenting yeast with a neutral character, BAJA from CellarScience is the perfect candidate. Originally developed and popularized by the Modelo Group, this Mexican yeast strain will produce clean, crisp lagers and finishes dry. Allowing for the balanced expression of malt and hops, BAJA will become your go-to yeast for fermenting Mexican-style light lagers, dark lagers, and cold IPAs. CellarScience provides 15g of yeast per sachet, which is up to 36% more than any other brand of dry yeast. Every batch of yeast is PCR tested to ensure quality. Every batch is PCR tested to ensure contamination free yeast. Dosage: One sachet is enough to treat a 5–6 gallon batch. When calculating for larger batches, use at a rate of 2.5–4 grams per gallon of wort. We recommend rounding up by one full sachet rather than measuring out the yeast exactly. For professional brewers, use at a rate 80-120 grams per barrel, depending on wort temperature and gravity. Direct Pitch or Rehydrate: BAJA yeast is designed to be sprinkled directly onto the surface of your wort with no oxygenation required in the initial fermentation. Our aerobic growth process makes this possible by creating dry yeast with high viability and high sterol levels. BAJA yeast is pre-loaded with essential nutrients to ensure a successful, complete fermentation. While not required, some brewers prefer to rehydrate yeast. To hydrate yeast, first, sanitize the yeast brick and scissors. Use 10 grams of sterilized tap water between 85-95°F (29-35°C) mixed with 0.25 grams of FermStart per gram of yeast. Sprinkle yeast on the water. Allow the slurry to stand undisturbed for 20 minutes, then swirl. Use small amounts of wort to adjust to within 10°F (6°C) of wort temperature before pitching. Ferment between 50-56°F (10-13°C). Optimum Fermentation Temp: 50-56°F Flocculation: Medium-High Alcohol Tolerance: 10-11% ABV Attenuation: 75-85% Similar Strains: WLP940 Gluten-free CellarScience Yeast: For years liquid yeast has been sold as the higher quality option but times are changing. Yes, 20 years ago dry yeast was made by bread yeast producers and the quality was not as good as liquid yeast. CellarScience is helping to flip that script with a full lineup of high-quality dry yeasts. Cell count and viability is usually higher than commercial liquid yeast pitches, which vary from pouch to pouch and don't ship well. CellarScience yeast can be pitched directly in most batches of wort, offering significant time savings. Yeast that is quick and easy to use, high quality, and available at a reasonable cost adds up to a tremendous value. Quality yeast that doesn't "break the brink". CellarScience Nutrients: For high gravity ferments consider rehydrating yeast with CellarScience FermStart yeast hydration nutrient. For high gravity or low nutrient wort, feed your fermentation with CellarScience FermFed DAP Free complex yeast nutrient mix.

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$4.99
CellarScience® Clearzyme | Beer Clarifier

Clearzyme by CellarScience is an enzymatic solution to create clear beer by breaking down haze causing proteins so they cannot later bind with tannins. Because it specifically targets only haze active proteins, it has no effect on flavor, aroma or head retention. Use: Add 1/4 tsp per 5 gallons at the start of fermentation. Works best at a temperature range between 50-68°F and pH of 4-6. Additional Notes: Clearzyme is a protease, or proteolytic, enzyme that partially or totally hydrolyzes peptide bonds in protein. The resulting protein fractions are then too small to bond with the polyphenols in hops. One of the huge benefits of Clearzyme is that it removes the need to cold crash, saving time and energy. Clearzyme also breaks down the Gluten protein that causes allergic reactions. Beers made with barley and wheat that have had Clearzyme added typically show gluten levels below 20ppm. Store at temperatures under 70°F. Immediately recap bottle after each use. The recommended shelf life is 12 months from the date the package is opened.

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$3.99
Lallemand PURE-LEES LONGEVITY™ | Mannoprotein | Oxidative Protection | Mouthfeel

Pure Lees Longevity – Lallemand Yeast Derivative for Oxidation Protection and Wine Stability Protects against oxidative spoilage during aging and storage Preserves freshness and aroma by reducing dissolved oxygen Enhances mouthfeel while contributing to wine structure and roundness Mimics the benefits of lees aging without risk of reductive faults Superior to standard inactivated yeast due to HPH™ processing and high antioxidant activity Pure Lees Longevity is a specialized inactivated yeast derivative developed using Lallemand’s High Pressure Homogenization (HPH™) process, designed to provide both antioxidant protection and mouthfeel enhancement in wines. It is rich in compounds with high oxygen-binding capacity, including peptides and polysaccharides, which actively scavenge oxygen and inhibit oxidative reactions. When added to wine after alcoholic fermentation or prior to bottling, it slows oxidative aging, helps maintain varietal expression, and contributes to a rounder, fuller palate. Compared to conventional inactivated yeasts or lees aging, Pure Lees Longevity provides more targeted protection without introducing off-aromas, making it ideal for wines requiring shelf-life extension or longer aging potential. Protocol Suspend Pure Lees Longevity in ten times its weight of clean wine or water at 15–25 °C. Stir gently until fully dispersed. Add at the end of alcoholic fermentation, during aging, or just before bottling. Mix thoroughly. Allow a minimum of 2 days of contact before racking; contact may be extended to enhance results. Usage Rates Recommended dosage: 20–40 grams per hectoliter = 0.2–0.4 grams per liter = 0.76–1.5 grams per gallon A typical rate of 30 g/hL (0.3 g/L or 1.14 g/gal) offers effective oxidative protection and subtle mouthfeel enhancement across a broad range of white, rosé, and red wines.

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$20.99
CellarScience® Brutzyme | Glucoamylase Enzyme

Brutzyme by CellarScience is an enzymatic blend used to produce dry beers. Perfect for making Brut IPAs or any other style where a low gravity, dry finish is desired. Amyloglucosidase, alpha amylase, and pullulanase combine to enable the hydrolysis of starch and dextrins into fermentable sugars that yeast can ferment. Use: Add 1/4 tsp per 5 gallons at the beginning of fermentation. Brutzyme can be added directly to the fermenter at the same time yeast is pitched. Works best at a temperature range between 50-68°F and a pH of 4-5.5. Additional Notes: Brutzyme is a mix of amyloglucosidase, a-amylase, pullulanase and other dextrinases capable of breaking down the α-1,4 and α-1,6 glycosidic linkages of starch, dextrins and oligosaccharides completely into fermentable sugars. Brutzyme is extremely affective for making very dry beers, especially Brut IPAs. Store at temperatures under 70°F. The recommended shelf life is 12 months from the date the package is opened.

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$7.09
Lallemand PURE-LEES ELEGANCY™ | Mannoprotein | Best for Smoothing Harsh Tannins

Pure-Lees Elegancy – Lallemand Yeast Derivative for Polished Red Wine Structure Softens aggressive, bitter, or green tannins while preserving structure Builds midpalate weight and extends finish without masking fruit Delivers fast sensory results, often within 48 hours Enhances colloidal stability to support clarity and filterability Similar to Pure-Lees Delicacy, but more effective with higher-tannin wines due to greater insoluble content Pure-Lees Elegancy is a targeted inactivated yeast product designed to bring refinement and balance to structured red wines. Like Pure-Lees Delicacy, it is produced using Lallemand’s High Pressure Homogenization (HPH) process, which maximizes the availability of active yeast components. However, Elegancy contains a greater proportion of insoluble yeast fragments, making it particularly effective for high-tannin varieties where a more assertive softening action is needed. It reduces bitterness and rough textures while enhancing wine length, roundness, and polish—all without impacting fruit expression or color. Winemakers looking to replicate the effects of long-term lees aging in a shorter timeframe will find Pure-Lees Elegancy especially valuable during post-fermentation refinement. Protocol Suspend Pure-Lees Elegancy in ten times its weight of clean wine or water at 15–25 °C. Stir gently until fully dispersed. Add at the end of alcoholic fermentation or early in storage. Mix thoroughly to ensure uniform distribution. Allow at least 2 days of contact; for greater effect, maintain contact for up to several weeks before racking. Usage Rates Recommended dosage: 20–40 grams per hectoliter = 0.2–0.4 grams per liter = 0.76–1.5 grams per gallon A typical rate of 30 g/hL (0.3 g/L or 1.14 g/gal) provides noticeable softening and mouthfeel enhancement in medium to full-bodied reds.

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$19.99
Lallemand GLUTASTAR® | Inactivated Yeast with High Levels of Glutathione

GlutaStar – Lallemand Yeast Derivative for Enhanced Glutathione Protection Improves protection against oxidation during aging and storage Delivers high concentrations of reduced glutathione (GSH) for maximum antioxidant effect Enhances tropical and citrus aroma stability, especially in thiol-rich varietals Boosts mouthfeel and roundness without increasing bitterness Outperforms traditional inactivated yeasts with a more targeted composition and higher GSH yield GlutaStar is a next-generation specific yeast derivative developed by Lallemand using a proprietary process that yields exceptionally high levels of naturally reduced glutathione. Designed for use in white and rosé wines, especially those with delicate thiol-driven profiles, GlutaStar helps lock in freshness and prevent oxidative damage during maturation, bottling, and shelf life. In addition to preserving bright aromas like grapefruit, passionfruit, and lemon zest, it contributes to a rounder mouthfeel without adding astringency. Compared to conventional inactivated yeasts, GlutaStar delivers superior antioxidant protection and stability, particularly when used early in the winemaking process. Usage Rates White and rosé wines: 0.2–0.4 grams per liter Equivalent to: 0.76–1.5 grams per gallon Protocol Rehydrate GlutaStar in ten times its weight of water at 30–35°C. Let sit for 10 minutes, then stir thoroughly. Add to must or wine at the beginning of fermentation or at the end of fermentation, depending on the goal. Do not combine directly with bentonite or tannins to preserve efficacy. Storage: Dated expiration. Store in a cool and dry environment at 18°C (65°F). Once opened, keep tightly sealed and dry.

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$99.99
Red Star | Premier Prestige | Dry Wine Yeast | 500 g

Fast fermenter that gives exceptional aromatic notes to white and rosé wines, especially from neutral grapes in need of an aromatic lift such as Chardonnay. Also ideal for aromatic varieties rich in thiols (Sauvignon blanc, Colombard, Syrah rosé, Grenache rosé) and terpenes (Muscat, Pinot Gris, Viognier, etc) because of its ability to release volatile precursors from the must, providing tropical and citrusy flavors and aromas to the wines. High alcohol tolerance (up to 15%) and low nitrogen requirement. Wide temperature range: 50 – 86°F (10 – 30°C). Saccharomyces cerevisiae. Application: Suited for white and rosé wines.

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$39.99

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