White Labs WLP820 Oktoberfest / Marzen Lager from White Labs: 11 to 14 C (52 to 58 F), 65 to 73 % attenuation, Medium-High tolerance, medium flocculation. Styles and substitutes.
Updated 05 September 2026.
White Labs WLP820 Oktoberfest / Marzen Lager yeast: temperature, attenuation and alcohol tolerance
White Labs (liquid)The published White Labs data for White Labs WLP820 Oktoberfest / Marzen Lager, the styles it suits, and what to use if you cannot get it.
Published technical data
| Manufacturer | White Labs (liquid) |
|---|---|
| Species | Saccharomyces pastorianus, bottom-fermenting lager |
| Fermentation temperature | 11 to 14 C (52 to 58 F) |
| Apparent attenuation | 65 to 73 % |
| Alcohol tolerance | Medium-High |
| Flocculation | Medium |
Notes
Recommended for Oktoberfest, Marzen, Vienna lager, dunkel.
Character: Malty, lower-attenuating Oktoberfest lager character.
A lower-attenuating lager strain that leaves the malt body an Oktoberfest or Marzen needs. It ferments slowly and benefits from a warmer start to avoid stalling, then a long cold lager. Do not expect it to finish as dry as a pilsner strain.
Substitutes and styles
Questions and answers
What is the manufacturer of the White Labs WLP820 Oktoberfest / Marzen Lager yeast?
White Labs (liquid)
What is the species of the White Labs WLP820 Oktoberfest / Marzen Lager yeast?
Saccharomyces pastorianus, bottom-fermenting lager
What is the fermentation temperature of the White Labs WLP820 Oktoberfest / Marzen Lager yeast?
11 to 14 C (52 to 58 F)
What is the apparent attenuation of the White Labs WLP820 Oktoberfest / Marzen Lager yeast?
65 to 73 %