Gypsum for Mushroom Cultivation



MushroomSource offers Gypsum as substrate additive for mushroom cultivation.


Gypsum acts as a buffer and helps to maintain proper pH level of the substrate. It is also used in preparation of grain jars. You would need only a small amount, usually just 3-5% of the substrate weight.


We can ship within Canada.


Granulated Gypsum - $4.95 + tax per pound (0.45 Kg)















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