White Labs WLP007 Dry English Ale Yeast is a clean, highly flocculent, and highly attenuative liquid yeast. Its more attenuative nature eliminates any residual sweetness and makes the yeast well suited for high gravity ales. This yeast also reaches terminal gravity quickly; 80% attenuation will be reached even with 10% ABV beers. White Labs yeast is world-renowned for quality and innovation, certified kosher, GMO free, and subject to thorough quality analysis before being packaged. This yeast comes packaged in White Labs' PurePitch packaging using the revolutionary FlexCell process, which creates yeast that has never been transferred or exposed to the environment. The PurePitch packaging is a recyclable, flexible material that allows for increased breathability, reducing the chance of gas buildup and maintaining the optimal environment for yeast.