White Labs WLP840 American Lager from White Labs: 10 to 13 C (50 to 55 F), 75 to 80 % attenuation, Medium tolerance, medium flocculation. Styles and substitutes.
Updated 05 September 2026.
White Labs WLP840 American Lager yeast: temperature, attenuation and alcohol tolerance
White Labs (liquid)The published White Labs data for White Labs WLP840 American 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 | 10 to 13 C (50 to 55 F) |
| Apparent attenuation | 75 to 80 % |
| Alcohol tolerance | Medium |
| Flocculation | Medium |
Notes
Recommended for American light lager, American pilsner, premium lager.
Character: Clean, crisp American light-lager character.
The American light-lager strain, clean and crisp with a dry finish and very low character, built for a pale American lager. It attenuates well for a light body. Ferment cold and lager for the cleanest, driest result.
Substitutes and styles
Questions and answers
What is the manufacturer of the White Labs WLP840 American Lager yeast?
White Labs (liquid)
What is the species of the White Labs WLP840 American Lager yeast?
Saccharomyces pastorianus, bottom-fermenting lager
What is the fermentation temperature of the White Labs WLP840 American Lager yeast?
10 to 13 C (50 to 55 F)
What is the apparent attenuation of the White Labs WLP840 American Lager yeast?
75 to 80 %