Amazon.com : Sterilized Grain Bag with Injection Port | Fast Colonization, Robust Mycelium Growth | Grow Your Own Edible Mushroom at Home | 3(lbs) : Patio, Lawn & Garden
One Pound Sterilized Rye Grain with Injection Port Bag – MycoHaus
Sterilized Grain Bag w/ Injection Port (5-6lbs) – Big Boy Mushrooms
North Spore Organic Hydrated Sterilized Grain Bag - Milliken Mushroom Supply
Sterilized Rye Grain Bags | 3 lbs. | Detroit Nutrient Company
Organic Sterilized Rye Grain Spawn Bag – Turnkey Myco