Calcium Sulphate Dihydrate

Calcium sulfate dihydrate is a mineral compound that occurs naturally as the mineral gypsum. It is produced industrially by reacting calcium carbonate (like limestone) with sulfuric acid. It is then purified and crystallized.

Manufacturers add calcium sulfate dihydrate as a firming agent, a dough conditioner, and a source of calcium. It helps maintain the texture and firmness of processed foods, particularly in canned vegetables and baked goods. It is also used in tofu production and as a dietary supplement.

Calcium sulfate is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of calcium, which is essential for bone health. JECFA has evaluated calcium sulfate and established an acceptable daily intake. No significant health concerns are associated with typical dietary intake.