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CellarScience®

For years, brewers were told that liquid yeast was the only choice for quality. Times have changed. CellarScience® is leading the charge with premium dry yeast that delivers superior performance without breaking the bank.

The CellarScience® Difference

  • Higher Cell Counts: Get more viable cells than typical liquid pitches for a stronger, healthier fermentation.
  • Pitch Directly & Save Time: No more starters. Just pitch directly into most worts and get fermenting faster.
  • Incredible Value: Premium quality, unmatched convenience, and a price that makes sense for every batch.

Pro-Tip: For high-gravity brews, give your fermentation a boost by rehydrating with FermStart.

50 products

  • CellarScience - Dry Wine Yeast - Bouquet - PLACEHOLDER CellarScience - Dry Wine Yeast - Bouquet - PLACEHOLDER

    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 - $49.39

  • CellarScience - Dry Wine Yeast - Luscious - PLACEHOLDER CellarScience - Dry Wine Yeast - Luscious - PLACEHOLDER

    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 - $54.49

  • CellarScience - CellarTan F - PLACEHOLDER CellarScience - CellarTan F - PLACEHOLDER

    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.

    $3.99 - $89.99

  • CellarScience - Dynamo 800 - PLACEHOLDER CellarScience - Dynamo 800 - PLACEHOLDER

    CellarScience® Dynamo 800 | Seltzer Nutrient

    Due to high demand, some of these items are currently out of stock but available for pre-order. Please check status notes below when selecting a size option to see if it is In Stock or tagged as PreBook. We will automatically ship this to you when we receive more inventory. Seltzer-Specific Formula: Provides the precise Free Amino Nitrogen (FAN) and nutrients lacking in sugar bases for a clean fermentation. Rapid & Clean Fermentation: Achieve a finished seltzer in as few as 5 days with a neutral flavor profile. Prevents Off-Flavors: Designed to help yeast avoid producing common off-flavors (fusel alcohols, acetaldehyde, sulfur). Easy to Use: Dissolves quickly and completely without the need for stirring or heating. Nutrient blends designed for fermenting wine or beer simply don’t cut it when it comes to crafting seltzers. Both grape juice and wort naturally contain baseline levels of nutrients and free amino nitrogen (FAN) that are absent in seltzer bases. Simply increasing the dosage of nutrients intended for beer or wine fermentation isn’t effective. While this approach may meet the nutrient requirements, yeast need a certain level of FAN to ferment seltzers efficiently and cleanly. Unfortunately, most nutrient products on the market fall short of this mark. Some solutions promote nitrogen bound within dead yeast cells, like our own FermFed DAP Free, as being suitable for seltzers. However, after extensive trials, we’ve found that this approach doesn’t deliver the neutral flavor profile needed for the best seltzers. While fermentations may complete, they often do so with unwanted yeast-derived off-flavors. Yeasts that struggle to finish tend to produce fusel alcohols, acetaldehyde, and sulfur compounds. Our Dynamo 800 Nutrient is specifically formulated to provide yeast with everything they need to achieve a clean fermentation in as few as 5 days. When designing this nutrient, a decision was made to make flavor the top priority. Additionally, it dissolves easily without the need for stirring or heating, making it simple and efficient to use. Dynamo includes both organic and inorganic nitrogen to achieve a fast, clean fermentation in the challenging environment of seltzer production. Like the 800-meter race, it’s not just about pure speed—it’s about endurance and precision. While some products prioritize fermentation speed alone, we believe Dynamo 800 Nutrient strikes the perfect balance. It has been designed to go the distance and deliver the best flavor, especially when paired with CellarScience VELO. Rapid Start: Can finish fermenting in as few as 5 days. Specifically Formulated for Seltzer Fermentation: Designed to meet the unique nutrient needs of seltzer. Does Not Need Heat to Dissolve: Specifically designed without the need for stirring. Optimal Free Amino Nitrogen (FAN) levels: Provides essential nutrients absent in sugar-based fermentations, including both inorganic and organic nitrogen sources. Prevents Off-Flavors: Helps yeast avoid producing fusel alcohols, acetaldehyde, and sulfur compounds. Fast, Clean Fermentation: Supports efficient fermentation without compromising taste. Balanced Approach: Prioritizes both fermentation speed and final flavor. Proven Results: Extensively tested to outperform other yeast nutrients.   Sold in pre-measured pitch sizes for 2-Gallon, 5-Gallon, 1 BBL, 5 BBL batches as well as a 5-LB bulk pack.

    $3.99 - $109.99

  • CellarScience - Easy Sur Lie - PLACEHOLDER

    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.

    $2.99 - $19.99

  • CellarScience - GSH Naturale - PLACEHOLDER

    CellarScience® GSH Naturale | Preserves Terpenes & Thiols

    1 review

    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.

    $1.99 - $8.99

  • CellarScience - Killazyme - PLACEHOLDER

    CellarScience® Killazyme | Inhibits Lactic Acid Bacteria

    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.  

    $7.99 - $299.99

  • CellarScience - Red Wonder - PLACEHOLDER

    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.

    $2.99 - $25.99

  • CellarScience - Enzo Red - PLACEHOLDER CellarScience - Enzo Red - PLACEHOLDER

    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.

    $17.99 - $89.99

  • CellarScience - Dry Yeast - PRIME Cask & Bottling Yeast - PLACEHOLDER CellarScience - Dry Yeast - PRIME Cask & Bottling Yeast - PLACEHOLDER

    CellarScience® PRIME Dry Yeast | Cask & Bottling Yeast | Premium Beer Yeast

    Developed specifically for bottle conditioning. PRIME has a high alcohol tolerance, neutral flavor, ferments quickly, and has excellent flocculation to form a compact sediment at the bottom of the bottle, keg, or barrel. Does not ferment maltotriose so will not dry your beer out further and will only ferment the sugar you add. Every batch is PCR tested to ensure quality.  Dosage: Use at a rate of .38 grams per gallon or 1 gram per liter. Directions: Mix the desired amount of Dextrose in 5x its weight of water, boil, cool to approximately room temperature, and mix the sugar solution into your beer. Direct Pitch or Rehydrate: To hydrate yeast, first, sanitize yeast brick and scissors. Use 10 grams of sterilized tap water, between 85-95°F (29-35°C), per gram of yeast. Sprinkle yeast onto the water. Allow the slurry to stand undisturbed for 20 minutes and then swirl. Use small amounts of beer to adjust to within 10°F (6°C) of beer temp. Mix yeast slurry into beer. Allow carbonation to develop for two weeks between 60-78°F (16-26°C) before testing for adequate carbonation. Optimum Fermentation Temp: 53-77°F Flocculation: Very High Attenuation: 95-100% Gluten-free  

    $4.99 - $74.99

  • CellarScience - FermZn Plus - 1 kg

    CellarScience® FermZn Plus | Advanced Zinc Nutrient for Yeast Health & Fermentation Stability | 1 KG

    Ultra-High Zinc Concentration: Provides 5.5–6.5% bioavailable elemental zinc—one of the highest yeast-bound concentrations available for maximum metabolic activation. Enhanced Fermentation Kinetics: Accelerates sugar metabolism and ethanol conversion for faster attenuation and a significantly reduced lag phase. Superior Yeast Health: Stabilizes cell membranes and reinforces stress tolerance, ensuring high viability in high-gravity brews and repitched batches. Optimized Flavor Profile: Promotes clean fermentation by reducing harsh fusels and balancing ester production for a more refined finished product. Absolute optimum value for delivering zinc to your yeast.  CellarScience FermZn Plus is an advanced yeast-derived nutrient designed to correct zinc deficiencies and restore complete fermentation performance. Zinc is one of the most critical trace elements in brewing and fermentation science it serves as a catalytic cofactor for key enzymes, including alcohol dehydrogenase, which is essential for ethanol production and redox balance. Yeast cells depend on zinc to stabilize cellular membranes, regulate stress-response proteins, and maintain the structural integrity of enzyme complexes involved in sugar metabolism. When zinc is limited, fermentation slows, higher alcohols and esters become unbalanced, and yeast viability declines especially in high-gravity or repitched conditions. FermZn Plus delivers an exceptionally concentrated level of zinc 5.5–6.5 % w/w elemental content—representing one of the highest bioavailable zinc concentrations achievable in a yeast-bound form. This massive zinc load ensures full metabolic activation of zinc-dependent enzymes, stabilizes cellular membranes, and enhances redox control, even in the most demanding high-gravity or nutrient-limited fermentations. By supplying zinc in a yeast-bound, bioavailable form, FermZn Plus bypasses the poor solubility of inorganic zinc salts, allowing yeast to uptake and utilize it efficiently throughout the entire fermentation cycle. The result is faster attenuation, reduced lag phase, cleaner flavor development, and healthier yeast for subsequent repitches. Bioavailable Zinc Complex: Delivers 5.5–6.5 % w/w elemental zinc bound within a yeast matrix for direct metabolic utilization among the highest yeast-bound zinc concentrations in fermentation science. Supports Alcohol Dehydrogenase Activity: Enhances the enzymatic conversion of acetaldehyde to ethanol for complete fermentation and reduced off-flavors. Accelerates Sugar Metabolism: Improves glycolytic pathway efficiency, leading to faster attenuation and reduced residual sugars. Protects Yeast Cell Structure: Reinforces membrane stability, improving osmotic and ethanol tolerance under stress. Improves Repitching Viability: Maintains intracellular zinc reserves for consistent fermentation performance across multiple generations. Optimizes Flavor Balance: Reduces harsh fusel formation while promoting desirable ester synthesis for a refined fermentation profile. YAN Neutral: Provides essential micronutrients without altering total nitrogen contribution or impacting nutrient balance. Recommended Usage Dose: 0.5–1 g/hL (0.019–0.038 g/gal), adjusted based on wort gravity and yeast stress level Preparation: Dissolve in sterile water prior to use Addition: Add during the final 10–15 minutes of the boil, or directly to sterile wort at pitch High-Gravity Beers Cider & Mead Wine & Fruit Wines Distillation Washes Serial Repitching Technical Data Zinc Content: 5.5–6.5 % w/w (yeast-bound) Composition: Yeast-derived trace mineral complex Nitrogen Contribution: Negligible (YAN neutral) Solubility: Readily dispersible in hot or sterile water Storage: Store in a cool, dry environment FERM-ZN PLUS delivers one of the most concentrated yeast-bound zinc sources in brewing science. Drives alcohol dehydrogenase activity, accelerates fermentation, and fortifies yeast health for rapid, clean, stable performance.

    $119.99

  • CellarScience - SilaFine Hot - PLACEHOLDER

    CellarScience® SilaFine Hot | Hot Side Clarifier for Kettle & Whirlpool

    Fast-Acting Hot-Side Clarifier: SilaFine Hot rapidly improves wort clarity in the kettle and whirlpool by helping form a tighter, more compact trub pile for cleaner cast-out. Improves Knockout Speed: By accelerating sedimentation, SilaFine Hot supports shorter whirlpool rests and more efficient brewhouse operation. Supports Better Fermentation: Clearer wort entering the fermenter can lead to faster, healthier fermentations and reduced haze precursors in finished beer. Vegan-Friendly & Purity Compliant: Made from pure, natural silica sol, SilaFine Hot is vegan-friendly and complies with the Reinheitsgebot German beer purity law. SilaFine Hot is an easy-to-use fining agent designed specifically for the hot side. Added during the boil or directly into the whirlpool, it helps bind and settle haze-forming particles and coarse trub so wort runs bright and clean into the fermenter. SilaFine Hot does not affect foam-positive proteins or beer flavor. Use Add SilaFine Hot during the last 5 minutes of the boil or inline to the whirlpool stream for full dispersion. Allow the whirlpool rest to compact trub before knockout. Standard Dose: 0.5–1 mL per gallon 15–30 mL per hL 19–38 mL per bbl Use the higher end of the range for adjunct-heavy or high-protein worts, such as those containing wheat, oats, or large percentages of rice or corn. Avoid overdosing, as excessive finings may temporarily increase haze and lengthen settling time. Whirlpool Best Practices Add separately from late hop additions for best clarity. Ensure adequate mixing or flow when dosing. Expect a tighter, more stable trub cone and improved wort clarity at knockout. Works effectively in both small brewhouses and large commercial systems. Additional Notes SilaFine Hot uses a commercial-grade silica sol at 30% concentration and is compliant with global beer purity standards. Do not freeze. Store in a cool, dry place away from direct sunlight and heat. Recommended shelf life: 12 months from opening. Allergen Free. GMO Free.  

    $3.49 - $74.99

  • CellarScience - Dry Yeast - ACID Sour Ale (500 g) CellarScience - Dry Yeast - ACID Sour Ale (500 g)

    CellarScience® ACID Dry Yeast | Sour Ale | Premium Beer Yeast | 500 g

    ACID yeast will complete both Lactic and Alcoholic fermentation on its own, producing an acidic beer with light notes of fruity floral esters Shave days off your sour beer making process by skipping the kettle souring step altogether! No need for added equipment to purge your kettle with CO2 or add heating to maintain high temps for lactic fermentation To reduce acidity, pitch an ale yeast strain to stop souring and wrap up alcoholic fermentation Ferment between 66-77°F CellarScience offers high-quality yeast that is easy to use, consistent, and available at a tremendous value Consistent, repeatable results without the need for kettle souring. ACID from CellarScience is a naturally selected, GMO-free yeast strain that has the ability to ferment and sour beer simultaneously. In a traditional kettle souring process, you'll need to pre-boil wort, purge it with CO2, pitch lactic acid, wrap and seal the kettle, and insulate or provide a heat source to maintain lactic acid fermentation temps that may be as high as 100°F+ depending on your chosen pitch. ACID allows brewers to bypass those steps and produce sour beers with the equipment they already own. Pitch directly in your fermenter and ACID yeast will complete both Lactic and Alcoholic fermentation on its own. When allowed to run its course, this yeast produces a rounded, refreshingly acidic beer with light notes of fruity floral esters. If you wish to reduce acidity, simply pitch a regular ale yeast strain when the desired pH is obtained which will hault souring and complete the rest of the alcoholic fermentation. Every batch is PCR tested to ensure quality. Dosage: Use at a rate of 80-120 grams per barrel, depending on wort temperature and gravity. Direct Pitch or Rehydrate: ACID 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. ACID 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 66-77°F (19-25°C). Optimum Fermentation Temp: 66-77°F Flocculation: High Alcohol Tolerance: 9% ABV Attenuation: 75-80% Lachancea thermotolerans 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.  

    $124.99

  • CellarScience - Dry Yeast - KOLSCH Ale (500 g) CellarScience - Dry Yeast - KOLSCH Ale (500 g)

    CellarScience® KÖLSCH Dry Yeast | Kölsch Ale | Premium Beer Yeast | 500 g

    A classic yeast strain for Kölsch & Altbier beer styles. A neutral ester profile allows the beer to better express noble hops & malt character. Finishes dry with low levels of diacetyl. Every batch is PCR tested to ensure quality.  Dosage: Use at a rate of 50-95 grams per barrel, depending on wort temperature and gravity. Direct Pitch or Rehydrate: KÖLSCH 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. KÖLSCH 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 60-73°F (16-23°C). Optimum Fermentation Temp: 60-73°F Flocculation: Medium Alcohol Tolerance: 10-11% ABV Attenuation: 75-80% Similar Strains: WLP029, WY2565 Gluten-free  

    $84.99

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