This value pack contains both Sodium Alginate and Calcium Chloride, which are used in Molecular Gastronomy to turn liquids into flavor pearls. This spherification technique is taught in an online video course, access to which is included with this package. This is the easiest way to get started with one of the most popular Modernist Cooking techniques. Ingredients are 100% Food Grade. Beware cheap industrial grade versions of these products.