https://www.sunflowerpolymer.com/products/crospovidone-pvpp-cas-no-9003-39-8/ What Is Crospovidone? CROSPOVIDONE is a cross-linked polyvinylpolypyrrolidone pvpp, which is mostly used as a clarifier and stabilizer for beer, fruit wine, and fruit juice in the brewing and beverage industries. It improves the stability of beer while maintaining the characteristics and flavor of beer, such as the basic qualities of the beer, flavor, and foam stability.All Rights Reserved