Berkeley Hills Sour Yeast | WLP4665 | Vault Strain

White Labs Berkeley Hills Sour Yeast WLP4665 A Unique Vault Strain for Balanced Sour Ales White Labs Berkeley Hills Sour Yeast (WLP4665) is a Vault strain designed to produce balanced sour ales with vibrant complexity. This strain offers a blend of Brettanomyces and Lactobacillus, creating a harmonious profile of fruity esters, mild funk, and tart acidity. Ideal for kettle sours, Berliner Weisse, or experimental sour ales, WLP4665 is perfect for brewers seeking to craft sour beers with approachable character and depth. Key Characteristics Strains Included: A blend of Brettanomyces and Lactobacillus strains. Flavor Profile: Fruity esters, mild funk, and balanced tartness. Applications: Perfect for kettle sours, Berliner Weisse, and other sour ale styles. Optimal Temperature Range: 68 - 72°F (20:22°C). Alcohol Tolerance: Medium to high, suitable for a variety of sour beer recipes. Recommended Usage White Labs WLP4665 is ideal for primary fermentation or as part of a mixed fermenta