| 2003 Month |
Yeast Strain Available |
| January-February |
WLP033
Klassic Ale
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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.
Attenuation: 66-74; Flocculation: Medium; Optimum Ferm. Temp: 66-70 |
WLP510
Belgian Bastogne Ale NEW! |
A high gravity, Trappist 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.
Attenuation: 74-80; Flocculation: Medium; Optimum Ferm. Temp: 66-72 |
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| March-April |
WLP940
Mexican Lager
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From Mexico City, this yeast produces clean lager beer, with a crisp finish. Good for Mexican style light lagers, as well as dark lagers.
Attenuation: 70-78; Flocculation: Medium; Optimum Ferm. Temp: 50-55 |
WLP022
Essex Ale NEW! |
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
Attenuation: 71-76; Flocculation: medium to high; Optimum Ferm. Temp: 66-70 |
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| May-June |
WLP003
German Ale II
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Good for Kölsch, Alt, and German style Pale Ales. Strong sulfur component will reduce with aging. Clean, but with more ester production than WLP029.
Attenuation: 73-80 ; Flocculation: Medium; Optimum Ferm. Temp: 65-70 |
WLP026
Premium Bitter |
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 b
Attenuation: 70-75; Flocculation: Medium; Optimum Ferm. Temp: 67-70 |
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| July-August |
WLP410
Belgian Wit II
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Less phenolic 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.
Attenuation: 70-75; Flocculation: low to medium; Optimum Ferm. Temp: 67-74 |
WLP885
Zurich Lager |
Swiss style lager yeast. With proper care, this yeast can be used to produce lager beer over 11% ABV. Sulfur and diacetyl production is minimal. Original culture provided to White Labs by Marc Sedam.
Attenuation: 70-80; Flocculation: Medium; Optimum Ferm. Temp: 50-5 |
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| September-October |
WLP006
Bedford British
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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.
Attenuation: 72-80; Flocculation: High; Optimum Ferm. Temp: 65-70 |
WLP920
Old Bavarian Lager |
From Southern Germany, this yeast finishes malty with a slight ester profile. Use in beers such as Oktoberfest, Bock, and Dark Lagers.
Attenuation: 66-73; Flocculation: Medium; Optimum Ferm. Temp: 50-55 |
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| November-December |
WLP025
Southwold Ale
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From Suffolk county, England. This yeast produces complex fruit and citrus flavors. Great for British bitters and pale ales. Slight sulfur is produced during fermentation, which will disappear with aging.
Attenuation: 68-75; Flocculation: Medium; Optimum Ferm. Temp: 66-69 |
WLP099
Super High Gravity Ale |
Can ferment up to 25% alcohol. From England.
Brewers Notes:
Flavors from this yeast vary greatly with the beer produced. The higher the gravity, the more winey the result. Beers over 16% ABV begin to taste less like beer, and more like fortified wines. With low gravity beers, this yeast produces a nice, subtle English ale-like ester profile.As the gravity increases, some phenolic character is evident, followed by the winey-ness of beers over 16% ABV. Most fermentations will stop between 12-16% ABV unless these high gravity tips are performed:
- Aerate very heavily, 4 times as much as with a normal gravity beer. Less oxygen dissolves into solution at high gravity.
- Pitch 3-4 times as much yeast as normal.
- Consider aerating intermittently during the first 5 days of fermentation. This will help yeast cells during a very difficult fermentation. Aerate with oxygen for 30 seconds or air for 5-10 minutes.
- Higher nutrient levels can allow yeast to tolerate higher alcohol levels. Use 2 times the normal nutrient level. This is especially important when using WLP099 to make wine and mead, which have almost no nutrient level to begin with.
- Do not start with the entire wort sugar at once. Begin fermentation with a wort that would produce a 6-8% beer, and add wort (it can be concentrated) each day during the first 5 days. This can be done together with aeration. This is mandatory if the reported 25% ABV is to be achieved.
- See schedule for availability.
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