Everybody's Mushrooms is a small New Hampshire based business that has created an All-In-One Grow Bag that makes mushroom cultivation as simple as possible to succeed. The mushroom bags contain 2.1 liters of media weighing approximately 3 pounds. The ingredients are: coco coir, vermiculite, millet, gypsum, hydrated lime.
In addition to providing a blend of ingredients ideal for producing strong yields of high quality mushrooms, they have minimized the risk of failure with unparalleled sterilization processes that minimize the possibility of contamination. Additionally, they adjust the PH of their growing media to 9.1-9.2 to help prevent Trichoderma growth (the most common contaminant) while allowing mycelium to grow.
Check out their step-by-step process for innoculation at this link: - https://www.everybodysmushrooms.com/guide