Gourmet Substrate

Designed for wood loving mushrooms, our blend of oak and soy is hydrated to field capacity and pressure sterilized to ensure sterility. Available in 5lb increments in 3T spawn bag, guaranteed to stay fresh.

If you'd prefer Bran over soy and a XLS bag (for species like Reishi) please add it to your order notes.

If ordering 10lb +, note your order will come in 5lb increments