American Lager Yeast | White Labs WLP840 Yeast
If this yeast is on sale at 40% off, it’s likely nearing its expiration date—but don’t worry! It’s still highly viable and a great way to save on your brew.
Yeast Specifications:
- Manufacturer: White Labs
- Yeast Type:
- Attenuation:
- Flocculation:
- Temperature:
Clean, Crisp Fermentations for Classic American Lagers
WLP840 American Lager Yeast from White Labs is a go-to strain for producing light, refreshing lagers with a clean finish. Originating from a traditional American lager brewery, this yeast is known for its ability to ferment crisp and neutral beers that showcase malt and hop character without interference from esters or sulfur.
Perfect for brewing American light lagers, premium lagers, and even cream ales, WLP840 delivers a dry, crisp finish with high clarity and excellent attenuation. Whether you're brewing a classic lawnmower beer or an award-winning competition lager, this yeast delivers predictable and reliable results.
Key Characteristics:
- Style Suitability: American Light Lager, Premium Lager, Cream Ale
- Flavor Profile: Clean, neutral, low ester production
- Fermentation Temp Range: 50–55°F (10–13°C)
- Attenuation: 75–83%
- Flocculation: Medium
- Alcohol Tolerance: Medium
Enhance Your Brewing Process
Pair WLP4637 with White Labs Brewzyme to eliminate diacetyl and ensure a clean, professional-quality finish. For optimal yeast health, use White Labs Zinc Buddy to promote vigorous and consistent fermentation.
Our Commitment to Yeast Health
At SoCal Brewing Supply, we take yeast storage and viability very seriously. We ensure yeast is always stored under optimal conditions, with 24-hour monitoring of refrigerator temperatures to prevent spikes that could negatively impact yeast health.
For liquid yeast orders, we recommend shipping with an ice pack and insulated envelope to ensure your yeast arrives in top condition. It's normal for ice packs to melt during transit; their purpose is to protect the yeast from extreme temperatures caused by external weather conditions.
If you like this yeast or want to view other White Labs yeast strains, check out our entire selection of White Labs Yeasts here.