Features & Benefits
- Gypsum provides calcium and sulfur for healthy mycelium growth.
- Gypsum acts as a pH buffer.
- Agricultural grade gypsum is ideal for mushroom substrate.
- Pelleted gypsum with lower calcium and binding agents should not be used for mushroom substrate.
- Sale is for 1lb of 100% pure agricultural gypsum.
- Calcium content: 19.6%, Sulfur content: 15.7%.