Mushroom substrate bags - Grain

Grain substrate growbags.

Our grain substrate bags and mushroom grow kits are crafted with organic, sterilized grain. This provides the ideal foundation for successful mushroom cultivation. These spawn bags are great.  Once filled with strong white mycelium your fully colonized grain bag with be ready for growing mushrooms at home.

To ensure a seamless and convenient growing experience, all of our mushroom growing kits arrive pre-sterilized with a self-healing injection port.

This design allows you to inoculate the substrate immediately upon arrival. Thus minimizing the risk of contamination and maximizing your chances of a bountiful harvest.