Lactobacillus delbrueckii | White Labs WLP677 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:
White Labs WLP677 Lactobacillus delbrueckii – Smooth, Creamy Sour Culture for Kettle & Mixed Ferments
Create Mellow Tang with Rich Body Using a Trusted L. delbrueckii Strain
White Labs WLP677 Lactobacillus delbrueckii is a single-strain lactic acid bacteria culture celebrated for delivering creamy, dairy-like tartness without harsh acidity. Ideal for kettle souring, mixed fermentations, and slow-aging sour beers, WLP677 brings balanced lactic flavor and richer mouthfeel. It performs best at 70–107°F (21–42°C) and is suitable for low-IBU worts, making it a versatile choice for Berliner Weisse, Flanders-style, mixed wild ales, and fruited sours.
Key Characteristics:
- Attenuation: Not applicable (bacteria)
- Flocculation: Low
- Fermentation Temp Range: 70–107 °F (21–42 °C)
- Flavor Profile: Smooth, creamy acidity
Perfect for Brewing:
- Berliner Weisse
- Flanders-Style Reds & Browns
- Mixed Culture Ales
- Fruited Sour Beers
- Kettle Sour Projects
Why Choose WLP677 Lactobacillus delbrueckii?
- Creamy Sour Profile: Adds rich mouthfeel and gentle lactic flavor.
- Fermentation Flexibility: Works in a broad temperature range and with mixed cultures.
- Brewing Versatility: Ideal for kettle souring or extended barrel-aging.
Enhance Your Brewing Process
Clarify your sour beers using White Labs Brewzyme, and support robust microbial health in blends with White Labs Zinc Buddy.
Our Commitment to Culture Health
At SoCal Brewing Supply, we store all cultures under constant refrigeration with 24-hour monitoring to guarantee peak viability and purity. We recommend adding an ice pack and insulated envelope when shipping—melting ice buffers cultures against temperature extremes.
Interested in more sour and wild cultures? Explore our full White Labs yeast & bacteria lineup here.
Achieve gentle, creamy sourness in your beers with White Labs WLP677 Lactobacillus delbrueckii—a reliable, flavorful choice for kettle and mixed fermentation brews.