Professional Yeast Bank
You will find descriptions of all strains available to professional/craft brewers on this page. To refine the listings, please use the strain finder bar to the right.
Looking for Homebrew Strains? Go here.
This yeast is famous for its clean flavors, balance and ability to be used in almost any style ale. It accentuates the hop flavors and is extremely versatile.
A classic ESB strain from one of England's largest independent breweries. This yeast is best suited for English style ales including milds, bitters, porters, and English style stouts. This yeast will leave a beer very clear, and will leave some residual sweetness.
Good for Kölsch, Alt, and German style Pale Ales. Strong sulfur component will reduce with aging. Clean, but with more ester production than WLP029.
This is the yeast from one of the oldest stout producing breweries in the world. It produces a slight hint of diacetyl, balanced by a light fruitiness and slight dry crispness. Great for Irish ales, stouts, porters, browns, reds and a very interesting pale ale.
This yeast is a little more attenuative than WLP002. Like most English strains, this yeast produces malty beers. Excellent for all English style ales including bitter, pale ale, porter, and brown ale.
Ferments dry and flocculates very well. Produces a distinctive ester profile. Good choice for most English style ales including bitter, pale ale, porter, and brown ale.
Clean, highly flocculent, and highly attenuative yeast. This yeast is similar to WLP002 in flavor profile, but is 10% more attenuative. This eliminates the residual sweetness, and makes the yeast well suited for high gravity ales. It is also reaches terminal gravity quickly. 80% attenuation will be reached even with 10% ABV beers.
Our "Brewer Patriot" strain can be used to reproduce many of the American versions of classic beer styles. Similar neutral character of WLP001, but less attenuation, less accentuation of hop bitterness, slightly less flocculation, and a little tartness. Very clean and low esters. Great yeast for golden, blonde, honey, pales and German alt style ales.
Malty, Northern European-origin ale yeast. Low ester production, giving a clean profile. Little to no sulfur production. Low attenuation helps to contribute to the malty character. Good for Alt, Kolsch, malty English ales, and fruit beers.
Dry, malty ale yeast. Provides a complex, oakey ester character to your beer. Hop bitterness comes through well. This yeast is well suited for classic British pale ales, bitters, and stouts. Does not flocculate as much as WLP002 and WLP005.
Traditional mixed yeast culture. British style character, slightly fruity, with a hint of sulfur production. This yeast can be used for many different beer styles. The most traditional choices would be English style ales including milds, bitters, porters, and English style stouts. North American style ales will also benefit from fermentation with WLP017. The beer will clear easily.
Flavorful British style yeast. Drier finish than many British ale yeast. Produces slightly fruity and bready character. Good top fermenting yeast strain, is well suited for top cropping (collecting). This yeast is well suited for classic British milds, pale ales, bitters, and stouts. Does not flocculate as much as WLP002 and WLP005.
From the famous brewing town of Burton upon Trent, England, this yeast is packed with character. It provides delicious subtle fruity flavors like apple, clover honey and pear. Great for all English styles, IPA's, bitters, and pales. Excellent in porters and stouts.
From Suffolk county, England. This yeast produces complex fruit, citrus, and spicy flavors. Great for British bitters and pale ales. Slight sulfur is produced during fermentation, which will disappear with aging.
From Staffordshire, England. Fermentation gives a mild, but complex, estery character. Ferments strong and dry. Good for high gravity beers. Best for all English style ales, including bitters, milds, ESBs, porters, stouts, and barley wines.
Scotland is famous for its malty, strong ales. This yeast can reproduce complex, flavorful Scottish style ales. This yeast can be an everyday strain, similar to WLP001. Hop character is not muted with this strain, as it is with WLP002.
From a small brewpub in Cologne, Germany, this yeast works great in Kölsch and Alt style beers. Good for light beers like blond and honey. Accentuates hop flavors, similar to WLP001. The slight sulfur produced during fermentation will disappear with age and leave a super clean, lager like ale.
Traditional English style, single strain yeast. Produces signature ester character, and does not mask hop character. Leaves ale with a slightly sweet malt character. Best for bitters, milds, porters, and stouts. Also good for Scottish style ales.
Top-fermenting strain that is traditionally good for top-cropping. Moderately flocculent with a clean, dry finish. Low ester profile, producing a highly balanced English-style beer.
British style ale yeast with a very dry finish. Medium to low fruit and fusel alcohol production. Good top fermenting yeast strain, is well suited for top cropping (collecting). This yeast is well suited for pale ales, ambers, porters, and stouts.
A popular ale yeast from the Pacific Northwest. The yeast will clear from the beer well, and leave a malty profile. More fruity than WLP002, English Ale Yeast. Good yeast for English style ales including milds, bitters, IPA, porters, and English style stouts.
A strain that was widely used for Scotch Whisky production from the early 1950s, producing a complex array of ester compounds and fusel oils, as well as some spicy, clove character. Suitable for Scotch Whisky or American-style Whiskey. Used in high-gravity beers.
Suitable for American-style whiskey and bourbon. This yeast is famous for creating rich, smooth flavors. Clean and dry fermenting yeast. Will tolerate high alcohol concentrations (15%), and ester production is low. Also popular in high-gravity beers.
From Northern California. This strain is more fruity than WLP001, and slightly more flocculent. Attenuation is lower, resulting in a fuller bodied beer than with WLP001.
Our most popular yeast strain is WLP001, California Ale Yeast. This blend celebrates the strengths of California- clean, neutral fermentation, versatile usage, and adds two other strains that belong to the same 'clean/neutral' flavor category. The additional strains create complexity to the finished beer. This blend tastes more lager like than WLP001. Hop flavors and bitterness are accentuated, but not to the extreme of California. Slight sulfur will be produced during fermentation.
Yeast strain that produces low ester profile and moderate fusel oils. Temperature and alcohol tolerant and suitable for American-style whiskey using barley or corn base. Also used in high-gravity beers.
From a tradtional distillery in the heart of Bourbon country, this strain produces a carmel, malty character with balanced ester profile. Suitable for Bourbon or other American Whiskey with barley, rye, or corn as the base grain. Used in high-gravity beers.
Clean strain that complements malt flavor. Low to moderate esters, when fermentation temperature is below 70°F. Moderate plus ester character over 70°F. Low diacetyl production. Good yeast strain for Biere de Garde, blond, amber, brown ales, and specialty beers.
Yeast from an historic brewery in Northern California, this strain was embraced by the early pioneers of craft beer in America and continues to be a great choice for those seeking to use a traditional British-style yeast. A neutral and versatile strain, it is a great choice for pale ales, porters, and stouts.
This is a blend of ale and lager yeast strains. The strains work together to create a clean, crisp, light American lager style ale. A pleasing estery aroma may be perceived from the ale yeast contribution. Hop flavors and bitterness are slightly subdued. Slight sulfur will be produced during fermentation, from the lager yeast.
A blend of British ale yeast strains, designed to add complexity to your ale. Moderate fruitiness and mineral-like, with little to no sulfur. Drier than WLP002 and WLP005, but with similar flocculation properties. Good yeast blend for English Pale Ale, Bitter, Porter, Stout, and India Pale Ale.
A super clean, super-fast fermenting strain. A low ester-producing strain that results in a balanced, neutral flavor and aroma profile. Alcohol-tolerant and very versatile for a wide variety of styles. Similar to California Ale Yeast WLP001 but it generally ferments faster.
This yeast has proven to be great in IPAs. This is a great yeast for people who like WLP001 California Ale Yeast because this yeast throws a little personality and body into your beer. Esters are higher than WLP001. This yeast has been known to result in more diacetyl so increasing the temperature at the end of fermentation is suggested.
Can ferment up to 25% alcohol. From England. Produces ester character that increases with increasing gravity. Malt character dominates at lower gravities.
This famous German yeast is a strain used in the production of traditional, authentic wheat beers. It produces the banana and clove notes traditionally associated with German wheat beers and leaves the desired cloudy look of traditional German wheat beers.
This yeast is used to produce the Oregon style American Hefeweizen. Unlike WLP300, this yeast produces a very slight amount of the banana and clove notes. It produces some sulfur, but is otherwise a clean fermenting yeast, which does not flocculate well, producing a cloudy beer.
Former Yeast Lab W51 yeast strain, acquired from Dan McConnell. The description originally used by Yeast Lab still fits: "This strain produces a classic German-style wheat beer, with moderately high, spicy, phenolic overtones reminiscent of cloves."
Large clove and phenolic aroma and flavor, with minimal banana. Refreshing citrus and apricot notes. Crisp, drinkable hefeweizen. Less flocculent than WLP300, and sulfur production is higher.
Less Belgian-like phenolics than WLP400 and more spicy. Will leave a bit more sweetness, and flocculation is higher than WLP400. Use to produce Belgian Wit, spiced Ales, wheat Ales, and specialty Beers.
Notice to brewers: Tends to take a long time to start; brewers should plan this into their brewing schedule. Needs heavy aeration and nutrients. Allow temperature to free rise.
From a Belgian monastery where monks traditionally made beer, this yeast produces the distinctive fruitiness and plum characteristics. Excellent yeast for high gravity beers, Belgian ales, dubbels and trippels.
A high gravity, historic Belgian style ale yeast. Produces dry beer with slight acidic finish. More ‘clean’ fermentation character than WLP500 or WLP530. Not as spicy as WLP530 or WLP550. Excellent yeast for high gravity beers, Belgian ales, dubbels and trippels.
Clean, almost lager like Belgian type ale yeast. Good for Belgian type pales ales and amber ales, or with blends to combine with other Belgian type yeast strains. Biscuity, ale like aroma present. Hop flavors and bitterness are accentuated. Slight sulfur will be produced during fermentation, which can give the yeast a lager like flavor profile.
Used to produce traditional Belgian style beers. Similar to WLP500, but is less fruity and more alcohol tolerant (up to 15% ABV). Excellent yeast for high gravity beers, Belgian ales, dubbels and trippels.
An authentic traditional Belgian style yeast. Use for Belgian style ales, dubbels, tripples, and specialty beers. Fruit character is medium, in between WLP500 (high) and WLP530 (low).
Note: This strain benefits from extra oxygenation
From the Ardennes region of Belgium, this classic yeast strain produces moderate levels of ester and spicy phenolic character. Typically results in a dry, but balanced finish. This yeast is well suited for Belgian dark strongs, Abbey Ales, and Christmas beers.
Saisons, Belgian Ales, Belgian Reds, Belgian Browns, and White beers are just a few of the classic Belgian beer styles that can be created with this yeast strain. Phenolic and spicy flavors dominate the profile, with less fruitiness then WLP500.
Classic Saison yeast from Wallonia. It produces earthy, peppery, and spicy notes. Slightly sweet. With high gravity saisons, brewers may wish to dry the beer with an alternate yeast added after 75% fermentation.
Note to brewers: This strain tends to stall out in fermentation and then restart as long as two weeks later. Make sure the wort is well-oxygenated and allow the temperature to free rise in order to ensure complete fermentation. Some brewers add WLP001 to finish.
Saison strain with more fruity ester production than with WLP565. Moderately phenolic, with a clove-like characteristic in finished beer flavor and aroma. Ferments faster than WLP565.
This blend melds Belgian style ale and saison strains. The strains work in harmony to create complex, fruity aromas and flavors. The blend of yeast strains encourages complete fermentation in a timely manner. Phenolic, spicy, earthy, and clove like flavors are also created.
From East Flanders, versatile yeast that can produce light Belgian ales to high gravity Belgian beers (12% ABV). A combination of fruitiness and phenolic characteristics dominate the flavor profile. Some sulfur is produced during fermentation, which will dissipate following the end of fermentation.
A blend of traditional Belgian monastery type yeast (2) and one Belgian ale type yeast. This creates a versatile blend that can be used for traditional monastery type beer, or a myriad of beers that can be described as 'Belgian type'.
Produces beer with a high fruit ester characteristic, as well as some slight tartness. Finishes slightly malty, which balances out the esters. Also produces low levels of clovey phenolics. Great yeast choice for a summer Saison that is light and easy-drinking.
Unique yeast strain producing farmhouse-style beers with a phenolic “bite” and moderate ester compounds. Producing a cleaner aroma profile than other farmhouse styles, this yeast is versatile and highly attenuating. The most popular saison strain in the White Labs Tasting Room.
** COMING SOON **
This kombucha SCOBY has been used by White Labs and tested for over a year at our facilities. Low acetic acid production and low alcohol production is based on our recipe. Below are organisms that were isolated from the SCOBY. More organisms are likely part of the SCOBY, but have not yet been culturable for isolation. For a Kombucha recipe, check back soon for an update to this page. Product is large enough to start 1 to 3 gallons but will grow over time to accommodate larger sizes.
Organisms isolated from the SCOBY via 16S ribosomal DNA sequencing:
Bacteria (Percent confidence in speciation is in parenthesis):
Bacillus licheniformis (99%)
Bacillus cereus (99%)
Bacillus anthracis/pseudomycoides (98%)*
Bacillus pumillus/aerophilus/safensis/altitudinis (99%)*
Acetobacter tropicalis (99%)
Bacillus aerophilus (96%)
Bacillus aryabhattai (98%)
Brettanomyces bruxellensis (99%)
Saccharomyces cerevisiae (92%)
*Multiple organisms are listed because they cannot be differentiated based on their 16s ribosomal DNA sequence.
A blend of a traditional German Weizen yeast and Lactobacillus to create a subtle, tart, drinkable beer. Can take several months to develop tart character. Perfect for traditional Berliner Weisse.
This strain, used traditionally for wild yeast-like fermentations, produces a slightly tart beer with delicate characteristics of mango and pineapple. Can also be used to produce effervescence when bottle-conditioning.
(Formerly named Brettanomyces bruxellensis Trois)
Low intensity Brett character. Originally isolated from strong English stock beer, in the early 20th century. The Brett flavors produced are more subtle than WLP650 and WLP653. More aroma than flavor contribution. Fruity, pineapple like aroma. B. claussenii is closely related to B. anomalus.
The vrai (true, in French) Brettanomyces bruxellensis Trois. The infamous strain used for all-Brettanomyces fermentations, has a robust, complex sour character with aromas of pear. Best used as a primary fermentation strain.
Medium intensity Brett character. Classic strain used in secondary fermentation for Belgian style beers and lambics. One historic brewery in Belgium uses this strain in secondary fermentation and bottling to produce their characteristic flavor.
High intensity Brett character. Defines the "Brett character": Horsey, smoky and spicy flavors. As the name suggests, this strain is found most often in Lambic style beers, which are spontaneously fermented beers. Also found in Flanders and sour brown style beers.
Pediococcus damnosus is a cocci bacteria known for its souring capabilities by producing lactic acid. Perfect to add to any sour program. High diacetyl producer and slow growing.
Blended culture used to produce the classic beer styles of the West Flanders region of Belgium . A proprietary blend of Saccharomyces yeasts, Brettanomyces, Lactobacillus, and Pediococcus, this culture creates a more complex, dark stone fruit characteristic than WLP 655 Belgian Sour Mix
Inspired by local American brewers crafting semi-traditional Belgian-style ales. This blend creates a complex flavor profile with a moderate level of sourness. It consists of a traditional farmhouse yeast strain and Brettanomyces. Great yeast for farmhouse ales, Saisons, and other Belgian-inspired beers
Malolactic Fermentation is the conversion of malic acid to lactic acid by bacteria from the lactic acid bacteria family. Lactic acid is less acidic than malic acid, which in turn decreases acidity and helps to soften and/or round out some of the flavors in wine. These liquid cultures are available in vials to inoculate 6 gallons or 1 liter sizes to inoculate 60 gallons.
Please note: We recommend caution with using WLP675 with wine kits, which contain potassium sorbate and effect the viability of malolactic bacteria. Under FAQ questions below, you will find instructions for using WLP675 with wine kits.
General instructions are under FAQs below.
This yeast develops a film (flor) on the surface of the wine. Creates green almond, granny smith and nougat characteristics found in sherry. Can also be used for Port, Madeira and other sweet styles. For use in secondary fermentation. Slow fermentor.
For use in rice based fermentations. For sake, use this yeast in conjunction with Koji (to produce fermentable sugar). WLP705 produces full body sake character, and subtle fragrance.
Isolated from Pinot Noir grapes by White Labs in Davis, CA. This strain produces fruity and complex aromas, and is an ideal choice for hardy red wine varieties, as well as aromatic white wines such as Chardonnay. This strain is reliable for difficult fermentations.
A wine yeast strain that is less attenuative than WLP715, leaving some residual sweetness. Slightly fruity and will tolerate alcohol concentrations up to 15%. A good choice for sweet mead and cider, as well as Blush wines, Gewürztraminer, Sauternes, Riesling.
German in origin, this yeast has high fruit/ester production. Perfect for Riesling and Gewürztraminer. Moderate fermentation characteristics and cold tolerant.
Dry wine yeast. Slight ester production, low sulfur dioxide production. Enhances varietal character. WLP730 is a good choice for all white and blush wines, including Chablis, Chenin Blanc, Semillon, and Sauvignon Blanc. Fermentation speed is moderate.
Neutral, low fusel alcohol production. Will ferment to dryness, alcohol tolerance to 18%. Vigorous fermenter. WLP740 is well suited for Merlot, Shiraz, Pinot Noir, Chardonnay, Cabernet, Sauvignon Blanc, and Semillon.
Classic Bordeaux yeast for red wine fermentations. Moderate fermentation characteristics. Tolerates lower fermentation temperatures. Rich, smooth flavor profile.
High temperature tolerance. Moderate fermentation speed. Excellent for full-bodied red wines, ester production complements flavor. WLP760 is also suitable for Merlot, Chardonnay, Chianti, Chenin Blanc, and Sauvignon Blanc.
Classic cider yeast. Ferments dry, but retains flavor from apples. Sulfur is produced during fermentation, but will disappear in first two weeks of aging. Can also be used for wine and high gravity beers.
Classic pilsner strain from the premier pilsner producer in the Czech Republic. Somewhat dry with a malty finish, this yeast is best suited for European pilsner production.
This yeast is used to produce the "California Common" style beer. A unique lager strain which has the ability to ferment up to 65 degrees while retaining lager characteristics. Can also be fermented down to 50 degrees for production of marzens, pilsners and other style lagers.
Clean, crisp European lager yeast with low sulfur production. The strain originates from a very old brewery in West Belgium. Great for European style pilsners, dark lagers, Vienna lager, and American style lagers.
This yeast produces a very malty, bock like style. It does not finish as dry as WLP830. This yeast is much slower in the first generation than WLP830, so we encourage a larger starter to be used the first generation or schedule a longer lagering time.
From the Alps of southern Bavaria, this yeast produces a beer that is well balanced between malt and hop character. The excellent malt profile makes it well suited for Bocks, Doppelbocks, and Oktoberfest style beers. Very versatile lager yeast, it is so well balanced that it has gained tremendous popularity for use in Classic American style Pilsners. Also good for Helles style lager beer.
Clean, crisp north European lager yeast. Not as malty as the southern European lager yeast strains. Great for European style pilsners, European style dark lagers, Vienna, and American style lagers.
This yeast helps to produce a malty, but balanced traditional Munich-style lager. Clean and strong fermenter, it's great for a variety of lager styles ranging from Helles to Rauchbier.
Licensed from Charlie Papazian, this strain can ferment at ale and lager temperatures, allowing brewers to produce diverse beer styles. The recipes in both Papazian's books, The Complete Joy of Homebrewing and The Homebrewers Companion, were originally developed and brewed with this yeast.
Optimum Lagering Temperature: 32-37°F
From Southern Germany, this yeast finishes malty with a slight ester profile. Use in beers such as Oktoberfest, Bock, and Dark Lagers.
Use to ferment lager beer in one week! Ferment at room temperature 62-68°F) under 1.0 bar (14.7 PSI) until final gravity is obtained, generally in one week. Lager the beer at 35°F, 15 PSI, for 3-5 days, to condition. Sulfur production is strong first 2 days, then disappears by day 5. Do not need to carbonate, since at 1 bar entire time.
From Mexico City, this yeast produces clean lager beer, with a crisp finish. Good for Mexican style light lagers, as well as dark lagers. This is one of the best lager strains in the White Labs yeast bank; try it with any lager.