A classic ESB strain from one of England's largest independent breweries. This yeast is best suited for English style ales including milds, bitters, porters, & English style stouts. This yeast will leave a beer very clear, & will leave some residual sweetness. Attenuation: 63-70% Flocculation: Very High Optimum Fermentation Temperature: 65-68°F (18-20°C) Alcohol Tolerance: Medium