Ultra-Ferm Brewers often want to produce light beers or dietetic beers. In these cases the brewer wants a controlled or complete hydrolysis of starch and dextrins to fermentable glucose. Traditional brewing methods permit only 75 to 80% hydrolysis of starch present in the grain raw material. ULTRA-FERM by White Labs amyloglucosidase permits total hydrolysis of
dextrins to fermentable glucose, from all types of starch. In the brewhouse, the recommended application dosage of ULTRA-FERM is 0.8 to 3.2L per ton of starch. It can be added at the beginning of the mash-in. In the fermenter, the recommended application dosage is 1.5 to 2.5 milliliters per hectolitre of beer, applied as the fermenter is being filled.
ULTRA-FERM optimal pH is between 3.5 and 5.5. Temperature should note exceed 60°C. Amyloglucosidase
activity is completely destroyed when the wort is held at 85°C for 10 minutes.

Abbey Ale

Used in two of the six Trappist breweries remaining in the world, this yeast produces the distinctive fruitiness and plum characteristics. Excellent yeast for high gravity beers, Belgian ales, dubbels and trippels.
Attenuation: 73-78; Flocculation: medium to high; Optimum Ferm Temp: 66-72

American Hefeweizen

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.
Attenuation: 70-75; Flocculation: Low; Optimum Ferm Temp: 65-69

Belgian Ale

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 than WLP500.
Attenuation: 72-78; Flocculation: Medium; Optimum Ferm Temp: 68-78

Belgian Golden Ale

From East Flanders, versatile yeast that can produce light Belgian ales to high gravity Belgian beers (12% ABV). A combinationof fruitiness and phenolic characteristics dominate the flavor profile. Some sulfur is produced during fermentation, which will dissipate following the end of fermentation.
Attenuation: 75-80; Flocculation: Low; Optimum Ferm Temp: 68-75

Belgian Saison Ale

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.
Attenuation: 65-75; Flocculation: Medium; Optimum Ferm Temp: 68-75

Belgian Saison Ale Blend

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 flavorsare alsocreated. Attenuation: 70-80%  Flocculation: Medium  Optimum Ferm Temp: 70-80°F
Alcohol Tolerance: Medium

British 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.
Attenuation: 67-74; Flocculation: High; Optimum Ferm Temp: 65-70

Burton Ale

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.
Attenuation: 69-75; Flocculation: Medium; Optimum Ferm Temp: 68-73

California Ale

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.
Attenuation: 73-80; Flocculation: High; Optimum Ferm Temp: 68-73

California V A

From Northern California. This strain is more fruity than WLP001 and slightly more flocculant. Attenuation is lower, resulting in a fuller bodied beer than with WLP001.
Attenuation: 70-75; Flocculation: medium to high; Optimum Ferm Temp: 66-70

Cream Ale Blend

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. 

Attenuation: 75-80%  Flocculation: Medium  Optimum Ferm Temp: 65-70°F  Alcohol Tolerance: Medium High

Cry Havoc

This signature strain, licensed from Charlie Papazian , has the ability to ferment at both ale and lager temperatures allowing the brewer to produce diverse beer styles.  When fermented at ale temperatures, the yeast produces fruity esters reminiscent of berries and apples. Hop character comes through well with hop accented beers. Diacetyl production will be very low when proper fermentation techniques are used.  When fermented at lager temperatures, esters are low in high gravity beers and negligible in other beers. Pleasant baked bread-like yeast aroma is often perceived in malt accented lagers. Slightly extended fermentation times may be experienced compared to other lagers. Some fermentation circumstances may produce sulfur aroma compounds, but these will usually dissipate with time. Good yeast for bottle conditioning. For Ales: Attenuation: 66-70; Flocculation: M-L; Optimum Ferm Temp: 68-74°F; Optimum Cellaring Temp: 50-55°F   Alt beers can be cellared at lagering temperatures. For Lagers: Attenuation: 66-70; Flocculation: L; Optimum Ferm Temp: 55-58°F; Optimum Lagering Temp: 32-37°F

Czech Budejovice Lager

Pilsner lager yeast from Southern Czech Republic. Produces dry and crisp lagers, with low diacetyl production.
Attenuation: 75-80; Flocculation: Medium; Optimum Ferm Temp: 50-55.

Dry English Ale

Clean, highly flocculant, 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 also reaches terminal gravity quickly. 80% attenuation will be reached even with 10% ABV beers.
Attenuation: 70-80; Flocculation: High; Optimum Ferm Temp: 65-70

East Coast Ale

The "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, increased flocculation, and a little tartness. Very clean and low esters. Great yeast for golden, blonde, honey, pales and German alt style ales.
Attenuation: 70-75; Flocculation: low to medium; Optimum Ferm Temp: 68-73

Edinburgh Scottish Ale

Scotland is famous for its malty, strong ales. This yeast can reproduce complex, flavorful Scottish style ales and can be an everyday strain, similar to WLP001. Hop character is not muted with this strain, as it is with WLP002.
Attenuation: 70-75; Flocculation: Medium; Optimum Ferm Temp: 65-70

English Ale

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.
Attenuation: 63-70; Flocculation: Very High; Optimum Ferm Temp: 65-68

European Ale

Malty, Northern European-origin ale yeast. Low ester production, giving a clean profile. Little to no sulfur production. Low attenuation helps contribute to the malty character. Good for Alt, Kolsch, malty English ales, and fruit beers.
Attenuation: 65-70; Flocculation: Medium; Optimum Ferm Temp: 65-70

German Ale/Kolsch

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.
Attenuation: 72-78; Flocculation: Medium; Optimum Ferm Temp: 65-69

German Bock

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, Dopplebocks, and Oktoberfest style beers. Very versatile lager yeast.
Attenuation: 70-76; Flocculation: Medium; Optimum Ferm Temp: 48-55

German Lager

This yeast is one of the most widely used lager yeasts in the world. Very malty and clean, great for all German lagers, pilsner, oktoberfest, and marzen.
Attenuation: 74-79; Flocculation: Medium; Optimum Ferm Temp: 50-55

Hefeweizen

This famous German yeast is a strain used in the production of traditional, authentic wheat beers. It produces the banana and clove nose traditionally associated with German wheat beers and leaves the desired cloudy look of traditional German wheat beers.
Attenuation: 72-76; Flocculation: Low; Optimum Ferm Temp: 68-72

Hefeweizen IV

Large clove and phenolic aroma and flavor, with minimal banana. Refreshing citrus and apricot notes. Crisp, drinkable. Less flocculent than WLP300, sulfur production is higher.
Attenuation: 73-80; Flocculation: Low; Optimum Ferm Temp: 66-70

London Ale

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.
Attenuation: 67-75; Flocculation: Medium; Optimum Ferm Temp: 66-71

This yeast produces a very malty, bock like style. It does not finish as dry as WLP830, as it is much slower in the first generation. We encourage a larger starter to be used the first generation or schedule a longer lagering time.
Attenuation: 65-73; Flocculation: Medium; Optimum Ferm Temp: 52-58

Pilsner

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.
Attenuation: 72-77; Flocculation: medium to high; Optimum Ferm Temp: 50-55

BIY90

San Diego Super Yeast 
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. 
Optimal Fermentation Temperature: 65-68F
Attenuation: 76-83% +
Flocculation: Medium-High
Alcohol Tolerance: High

San Francisco Lager

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.
Attenuation: 65-70; Flocculation: High; Optimum Ferm Temp: 58-65

This yeast is characterized by a malty finish and balanced aroma. It is a strong fermenter, produces slight sulfur, and low diacetyl.
Attenuation: 68-76; Flocculation: medium to high; Optimum Ferm Temp: 50-55

BIY70

Super High Gravity Can ferment up to 25% alcohol. From England. Attenuation: 80; Flocculation: Low; Optimum Ferm Temp: 69-74

Trappist Ale

From one of the six Trappist breweries remaining in the world, this yeast produces the distinctive fruitiness and plum characteristics. Excellent yeast for high gravity beers, Belgian ales, dubbels and trippels.
Attenuation: 73-78; Flocculation: low to medium; Optimum Ferm Temp: 65-72

Ice Pack

Jan- Feb. Platinum Strains

Abbey Ale

A widely used and alcohol tolerant Abbey yeast that is suitable for a variety of Belgian style ales. This strain produces a nice ester profile as well as slightly spicy alcohol notes. It can be slow to start; however, it attenuates well.

Origin:
Flocculation: medium-low
Attenuation: 74-78%
Temperature Range: 68-78° F (20-24° C)
Alcohol Tolerance: approximately 12% ABV

Abbey II

An excellent yeast strain for use in Belgian dark strong ales. This strain has a relatively “clean profile” which allows a rich malt and distinctive ethanol character to shine. Delicate dried fruit esters can be produced when used at higher fermentation temperatures or in a high gravity wort.

Origin:
Flocculation: medium
Attenuation: 73-77%
Temperature Range: 65-75° F (18-24° C)
Alcohol Tolerance: approximately 12% AB

American Ale

Very clean, crisp flavor characteristics with low fruitiness and mild ester production. A very versatile yeast for styles that desire dominate malt and hop character. This strain makes a wonderful “House” strain. Mild citrus notes develop with cooler 60-66°F (15-19ºC) fermentations. Normally requires filtration for bright beers.

Origin:
Flocculation: Medium-Low
Attenuation: 73-77%
Temperature Range: 60-72F, 15-22C
Alcohol Tolerance: 11% ABV

American Ale II 

With many of the best qualities that brewers look for when brewing American styles of beer, this strain’s performance is consistent and it makes great beer. This versatile strain is a very good choice for a “House” strain. Expect a soft, clean profile with hints of nut, and a slightly tart finish. Ferment at warmer temperatures to accentuate hop character with an increased fruitiness. Or, ferment cool for a clean, light citrus character. It attenuates well and is reliably flocculent, producing bright beer without filtration.

Origin:
Flocculation: Medium-High
Attenuation: 72-76%
Temperature Range: 60-72F, 15-22C
Alcohol Tolerance: 10% ABV

  

Bavarian Lager 

Used by many German breweries to produce rich, full-bodied, malty beers, this strain is a good choice for bocks and dopplebocks. A thorough diacetyl rest is recommended after fermentation is complete.

Origin:
Flocculation: medium-high
Attenuation: 73-77%
Temperature Range: 46-58° F (8-14° C)
Alcohol Tolerance: approximately 9% ABV

Bavarian Wheat

This proprietary blend of a top-fermenting neutral ale strain and a Bavarian wheat strain is a great choice when a subtle German style wheat beer is desired. The complex esters and phenolics from the wheat strain are nicely softened and balanced by the neutral ale strain.

Origin:
Flocculation: Medium
Attenuation: 73-77%
Temperature Range: 64-74F, 18-23C
Alcohol Tolerance: 10% ABV

Belgian Lambic Blend

This blend contains yeast and bacteria cultures important to the production of spontaneously fermented beers of the Lambic region. Specific proportions of a Belgian style ale strain, a sherry strain, two Brettanomyces strains, a Lactobacillus culture, and a Pediococcus culture produce the desirable flavor components of these beers as they are brewed in West Flanders. Propagation of this culture is not recommended and will result in a change of the proportions of the individual components. This blend will produce a very dry beer due to the super-attenuative nature of the mixed cultures.

Origin:
Flocculation: Variable
Attenuation: 70-80%
Temperature Range: 63-75° F (17-24° C)
Alcohol Tolerance: approximately 11% ABV

Belgian White  

This versatile witbier yeast strain can be used in a variety of Belgian style ales. This strain produces a complex flavor profile dominated by spicy phenolics with low to moderate ester production. It is a great strain choice when you want a delicate clove profile not to be overshadowed by esters. It will ferment fairly dry with a slightly tart finish that compliments the use of oats, malted and unmalted wheat. This strain is a true top cropping yeast requiring full fermenter headspace of 33%.

Origin:
Flocculation: Medium
Attenuation: 72-76%
Temperature Range: 62-75F, 16-24C
Alcohol Tolerance: 11 to12% ABV

British Ale

This yeast allows malt and hop character to dominate the profile. It ferments dry and crisp, slightly tart, fruity and well balanced. Beers will finish clean and neutral. Ferments well down to 64°F (18°C).

Origin:
Flocculation: Medium
Attenuation: 73-75%
Temperature Range: 64-72 F, 18-22C
Alcohol Tolerance: 10% ABV

British Ale II

A classic British ale profile with good flocculation and malty flavor characteristics. It will finish crisp, clean and fairly dry.

Origin:
Flocculation: high
Attenuation: 73-76%
Temperature Range: 63-75° F (17-24° C)
Alcohol Tolerance: approximately 10% ABV

California Lager

This strain is particularly well suited for producing 19th century-style West Coast beers with woody/minty hop flavor. It retains lager characteristics at temperatures up to 65°F (18°C) and produces malty, brilliantly clear beers. This strain is not recommended for cold temperature fermentation.

Origin:
Flocculation: high
Attenuation: 67-71%
Temperature Range: 58-68° F (14-20° C)
Alcohol Tolerance: approximately 9% ABV

Czech Pils  

Originating from the home of great Pilsners in the Czech Republic, this classic Pilsner strain will finish dry and malty. It is the perfect choice for Pilsners and all malt beers. Sulfur produced during fermentation can be reduced with warmer fermentation temperatures 58°F (14°C) and will dissipate with conditioning.

Origin:
Flocculation: Medium-High
Attenuation: 70-74%
Temperature Range: 50-58F, 10-14C
Alcohol Tolerance: 9% ABV

Denny's Favorite 

This terrific all-round yeast can be used for almost any beer style, and is a mainstay of one of our local homebrewers, Mr. Denny Conn. It is unique in that it produces a big mouthfeel and accentuates the malt, caramel, or fruit character of a beer without being sweet or under-attenuated..

Origin:
Flocculation: Low
Attenuation: 74-76%
Temperature Range: 60-70F 18-25C
Alcohol Tolerance: ABV 10%

European Ale

A full-bodied strain, finishing very malty with a complex flavor profile. This strain’s characteristics are very desirable in English style brown ales and porters. It produces a dense, rocky head during fermentation, and can be a slow to start and to attenuate. This yeast may continue to produce CO2 for an extended period after packaging or collection.

Origin:
Flocculation: high
Attenuation: 67-71%
Temperature Range: 62-72° F (16-22° C)
Alcohol Tolerance: approximately 10% ABV

Irish Ale

This versatile yeast ferments extremely well in dark worts. It is a good choice for most high gravity beers. Beers fermented in the lower temperature range produce a dry, crisp profile with subtle fruitiness. Fruit and complex esters will increase when fermentation temperatures are above 64°F (18°C).

Origin:
Flocculation: Medium
Attenuation: 71-75%
Temperature Range: 62-72F, 16-22C
Alcohol Tolerance: 12% ABV

London Ale III  

Originating from a traditional London brewery, this yeast has a wonderful malt and hop profile. It is a true top cropping strain with a fruity, very light and softly balanced palate. This strain will finish slightly sweet.

Origin:
Flocculation: high
Attenuation: 71-75%
Temperature Range: 64-74° F (18-23° C)
Alcohol Tolerance: approximately 10% ABV

London Special ESB

A very good cask conditioned ale strain, this extremely flocculant yeast produces distinctly malty beers. Attenuation levels are typically less than most other yeast strains which results in a slightly sweeter finish. Ales produced with this strain tend to be fruity, increasingly so with higher fermentation temperatures of 70-74°F (21-23° C). A thorough diacetyl rest is recommended after fermentation is complete. Bright beers are easily achieved within days without any filtration.

Origin:
Flocculation: Very High
Attenuation: 67-71%
Temperature Range: 64-72F, 18-22C
Alcohol Tolerance: 9% ABV

Munich Lager

This is a unique strain, capable of producing fine lagers. It is very smooth, well-rounded and full-bodied. A thorough diacetyl rest is recommended after fermentation is complete.

Origin:
Flocculation: medium
Attenuation: 70-74%
Temperature Range: 48-56° F (9-13° C)
Alcohol Tolerance: approximately 9% ABV

Northwest Ale

One of the classic ale strains from a Northwest U.S. Brewery. It produces a malty and mildly fruity ale with good depth and complexity.

Origin:
Flocculation: high
Attenuation: 67-71%
Temperature Range: 65-75° F (18-24° C)
Alcohol Tolerance: approximately 10% ABV

Pilsen Lager

Wyeast 2007 is the classic American lager strain. This mild, neutral strain produces beers with a nice malty character and a smooth palate. It ferments dry and crisp with minimal sulfur or diacetyl. Beers from this strain exhibit the characteristics of the most popular lager in America.

Origin:
Flocculation: Medium
Attenuation: 71-75%
Temperature Range: 48-56F, 9-13C
Alcohol Tolerance: 9% ABV

Ringwood Ale

A top cropping yeast strain with unique fermentation and flavor characteristics. Expect distinct fruit esters with a malty, complex profile. Flocculation is high, and the beer will clear well without filtration. A thorough diacetyl rest is recommended after fermentation is complete.

Origin:
Flocculation: High
Attenuation: 68-72%
Temperature Range: 64-74F, 18-23C
Alcohol Tolerance: 10% ABV

Scottish Ale

Our Scottish ale strain is ideally suited for the strong, malty ales of Scotland. This strain is very versatile, and is often used as a “House” strain as it ferments neutral and clean. Higher fermentation temperatures will result in an increased ester profile.

Origin:
Flocculation: high
Attenuation: 69-73%
Temperature Range: 55-75° F (13-24° C)
Alcohol Tolerance: approximately 12% ABV

Thames Valley

This strain produces classic British bitters with a rich, complex flavor profile. The yeast has a light malt character, low fruitiness, low esters and is clean and well balanced.

Origin:
Flocculation: medium-low
Attenuation: 77%
Temperature Range: 62-72° F (16-22° C)
Alcohol Tolerance: approximately 10% ABV

Trappist High Gravity

A classic strain selection for brewing Belgian dubbel or Belgian tripel. This Abbey strain produces a nice balance of complex fruity esters and phenolics, making it desirable for use in other Belgian style ales as well. A flocculent, true top cropping yeast (additional headspace is recommended), that will work over a broad temperature range. This strain makes a great Belgian style “House” strain.

Origin:
Flocculation: Medium
Attenuation: 74-78%
Temperature Range: 64-78F, 18-25C
Alcohol Tolerance: 11 to 12% ABV or higher

Weihenstephan Wheat

The classic and most popular German wheat beer strain used worldwide. This yeast strain produces a beautiful and delicate balance of banana esters and clove phenolics. The balance can be manipulated towards ester production through increasing the fermentation temperature, increasing the wort density, and decreasing the pitch rate. Over pitching can result in a near complete loss of banana character. Decreasing the ester level will allow a higher clove character to be perceived. Sulfur is commonly produced, but will dissipate with conditioning. This strain is very powdery and will remain in suspension for an extended amount of time following attenuation. This is true top cropping yeast and requires fermenter headspace of 33%.

Origin:
Flocculation: low
Attenuation: 73-77%
Temperature Range: 64-75° F (18-24° C)
Alcohol Tolerance: approximately 10% ABV

Whitbread

A mildly malty and slightly fruity fermentation profile. It is less tart and dry than Wyeast 1098 British Ale. With good flocculation characteristics, this yeast clears well without filtration. Low fermentation temperatures will produce a clean finish with a very low ester profile.

Origin:
Flocculation: Medium-High
Attenuation: 68-72%
Temperature Range: 64-75F, 18-24C
Alcohol Tolerance: 10% ABV