Grain Spawn – Mushroom Grain Cultures for Growing

Description

Our mushroom grain spawn is prepared using sterilized whole grains and fresh, vigorous mycelium for fast and reliable colonization. Ideal for both beginners and commercial growers, grain spawn provides a strong foundation for any mushroom cultivation project — from small home kits to large-scale substrate production.

Each batch is made under strict sterile conditions to ensure clean, contaminant-free results. Grain spawn is the preferred method for inoculating sawdust blocks, straw, Master’s Mix, grow bags, greenhouse operations, and commercial mushroom farms.

Choose from a wide selection of high-performing strains, including oysters, Lion’s Mane, shiitake, Reishi, and commercial HK35. Whether you’re growing at home or running a production farm, our grain spawn delivers fast colonization, strong fruiting, and consistent yields.