A superior milk coagulant, this product is a Passover Approved, fermentation-derived product, made using a selected strain of the dairy yeast Kluyveromyces lactis. This patented product, awarded GRAS status bythe FDA, is pure chymosin identical to the chymosin enzyme present in calf rennet. Unlike calf rennet, however, this is 100% pure chymosin. Developed by DSM Food Specialties, the world leader in fermentation technology, this is suitable for all varieties of cheese, including aged and vegetarian cheeses. Certified Kosher and HALAL.