Frontier co-op cream of tartar, powder is never tested on animals. This product is an indispensable ingredient in baking and acts as a leavening agent in cakes, quick breads and souffles when combined with baking soda and water. Frontier co-op cream of tartar, powder also aids in stiffening egg whites by adding just a pinch of this product while beating. This product is wine cask crystallized, certified kosher, and non-gmo. Frontier co-op cream of tartar, powder is packaged for your convenience in an easy-to-open jar and contains 3.52 oz. Of product.