WLP820 Oktoberfest/Marzen Lager Yeast
Liquid Lager yeast from White Labs.
Lab
White Labs· Lager · Liquid · WLP820
White Labs· Lager · Liquid · WLP820Specs
Attenuation
65–73%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
11–14°C
52–57°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Medium
How readily the yeast clumps together and drops clear once fermentation winds down.
Alcohol tolerance
≈12% 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.
Potential substitutes for WLP820 Oktoberfest/Marzen Lager Yeast
Common questions
- What is WLP820 Oktoberfest/Marzen Lager Yeast's attenuation?
- 65–73% apparent attenuation.
- What temperature should I ferment WLP820 Oktoberfest/Marzen Lager Yeast at?
- 11–14°C is the recommended range.
- What can I substitute for WLP820 Oktoberfest/Marzen Lager Yeast?
- SafLager S-23, M84 Bohemian Lager Yeast, 2206 Bavarian Lager, and L02 Fest.
Brew with WLP820 Oktoberfest/Marzen Lager Yeast
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