G02 Kaiser
Liquid Ale yeast from Imperial Yeast.
Lab
Imperial Yeast· Ale · Liquid · G02
Imperial Yeast· Ale · Liquid · G02Specs
Attenuation
73–77%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
13–18°C
55–64°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Low
How readily the yeast clumps together and drops clear once fermentation winds down.
Alcohol tolerance
≈10% ABV
The rough ABV ceiling where the yeast stresses out and stops fermenting.
Genetic traits
Phenolics
POF−
Ferments clean
Phenolically clean (POF-negative). No clove or spice, so malt, esters, and hops come through unmasked. The norm for American and British ales and most lagers.
Diastatic
STA-1−
Not diastatic
Does not carry the STA1 (diastaticus) gene. It attenuates normally, with no diastaticus over-attenuation or gushing risk.
Same strain, other labs
Potential substitutes for G02 Kaiser
Usually used in
AltbierKolschBerliner WeisseGoseBière de GardeBlonde AlePale Ale & American IPA
Common questions
- What is the G02 Kaiser equivalent?
- 1007 German Ale — the same strain from another lab, the German Ale / Kölsch (1007) strain.
- What is G02 Kaiser's attenuation?
- 73–77% apparent attenuation.
- What temperature should I ferment G02 Kaiser at?
- 13–18°C is the recommended range.
- Does G02 Kaiser produce phenolics (clove and spice)?
- No. G02 Kaiser is POF-negative (phenolically clean), so it won't throw clove or spice.
- What beer styles is G02 Kaiser good for?
- Altbier, Kolsch, Berliner Weisse, Gose, Bière de Garde, Blonde Ale, and Pale Ale & American IPA.
- What can I substitute for G02 Kaiser?
- WLP036 Dusseldorf Alt Ale Yeast and SafAle K-97.
Brew with G02 Kaiser
Build a recipe