These substrate blocks are made with hardwood sawdust, nitrogen-rich USDA organic soy hulls, and are PACKED with living mycelium. They are a great soil amendment, and can even still produce oyster mushrooms if the conditions are right. Help loop the food system with this all natural fertilizer!

NOTE: If you choose to grow mushrooms with spent mushroom substrate, FUNJ Shrooming Company frees itself of liability from proper harvesting, identifying, cooking, and others not listed here. You consume mushrooms grown from spent mushroom substrate at your own risk