Bentonite is a clay-like mineral that removes positively charged particles from wine. Add prior to primary fermentation to clear pectic and protein haze. Add 2 teaspoons with half a cup of boiling water (or very hot) and stir for 1-2 minutes. After the solution stands for an hour, mix and stir the solution into your wine. Let stand for 7-14 days during primary fermentation, then rack into a sanitized carboy.