White Labs WLP575 Belgian Style Ale Yeast Blend is a blend of traditional Belgian monastery type yeast and one Belgian ale type yeast. This creates a versatile blend that can be used for traditional monastery type beer, or a myriad of beers that can be described as "Belgian type". 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.