Fine Gypsum Powder Fertilizer For Mushroom Substrate - Food and Lab Grade
Fine Gypsum Powder Fertilizer For Mushroom Substrate - Food and Lab Grade
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Warranty & Refund Policy
Warranty & Refund Policy
Growing Supplies Warranty and Refund Policy
- We accept returns for all of non-substrate mushroom growing products in new condition with the original packaging within 30 Days after placing your order, with the exception of Agar Agar.
- Shipping fees and sales tax are non refundable.
- Buyer pays return shipping.
- We issue store credit only.
- No returns on sale items.
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SKU: SKU:2LBGYPSUM

Introducing Our Premium Fine Powder Food-Grade Gypsum Fertilizer for Mushroom Substrates and Casing Mix
Available in convenient 1 lb and 2 lb heavy-duty resealable mylar pouch bags.
We have complete confidence in this product, as we use it in our own substrates, and we strongly encourage you to do the same.
Incorporate it into your preferred substrate recipes.
Key Highlights:
- Finely Ground Gypsum Powder
- Maintains Food-Grade and Lab-Grade Quality Standards
- Suitable for Organic Food Products
- Excellent for large substrates, recommended gypsum content of 5-7%, or mix it with lime
- Use approximately 1 tablespoon per gallon of water for soaking whole grains Gypsum plays a crucial role in mushroom cultivation, providing essential calcium and sulfur nutrients. Here's how it elevates the mushroom growing process:
Balanced pH: Gypsum effectively regulates the pH of your growing substrate, ensuring it falls within the ideal range of 6 to 7 for optimal mushroom growth.
Enhanced Moisture Retention: Gypsum increases the water-holding capacity of the substrate, preventing it from becoming excessively dry or overly saturated, which can hinder mushroom development.
Stimulated Mycelium Growth: Gypsum contains vital calcium, a nutrient essential for mycelium growth, the vegetative part of the mushroom responsible for nutrient absorption. The addition of gypsum fosters robust mycelium growth.
Augmented Mushroom Yield: Research has shown that incorporating gypsum in the substrate can increase mushroom yields by up to 50%. This is due to the stabilizing effects of gypsum, resulting in larger, more robust mushrooms.
To summarize, gypsum is an indispensable tool in mushroom cultivation, widely utilized by growers to enhance both the quality and quantity of their mushroom harvests.