CaSO4-2H2O is used primarily in the food, beverage and pharmaceutical industries. CaSO4-2H2O is used primarily in the food, beverage and pharmaceutical industries. Commercial Baking Industry: In the commercial baking industry, the fillers are economical sources of supplemental calcium in enriched flour, cereals, baking powder, yeast, bread conditioners, baking powder, and cake icing. The gypsum ...