Gypsum - Calcium Sulfate Pharmaceutical Grade Food Grade - 1 lb

Very high quality Gypsum, also known as Calcium Sulfate, or CaSO4. pharmaceutical grade and food grade powder. Highly used in the mushroom industry for spawn production. Add small amounts of Gypsum and Calcium Carbonate (CACO3) to adjust pH to favor the mycelium growth, and to make the surface of the grain dryer to promote free flowing characteristics, usually 0.5-1% each. Also used in tofu recipes. 1 lb.