![Amazon.com : North Spore Organic (3 lbs) Sterilized Hydrated Grain Bag w/Self-Healing Injection Port | Sterile Mushroom Spawn Bag w/ 0.2 Micron Filter Patch | USDA Certified Organic : Patio, Lawn & Garden Amazon.com : North Spore Organic (3 lbs) Sterilized Hydrated Grain Bag w/Self-Healing Injection Port | Sterile Mushroom Spawn Bag w/ 0.2 Micron Filter Patch | USDA Certified Organic : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/51IW7ax1mnL._AC_.jpg)
Amazon.com : North Spore Organic (3 lbs) Sterilized Hydrated Grain Bag w/Self-Healing Injection Port | Sterile Mushroom Spawn Bag w/ 0.2 Micron Filter Patch | USDA Certified Organic : Patio, Lawn & Garden
![Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Milo) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Milo) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/71Elsc9UvEL._AC_UF894,1000_QL80_.jpg)
Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Milo) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden
![Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Rye) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Rye) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/61Vpn38DCEL._AC_UF894,1000_QL80_.jpg)
Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Rye) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden
![3lb Sterilized Grain Mushroom Bag With Injection Port Mushroom Substrate Grow Bags Fast Colonization Mushrooms Sterilized Bags - Etsy 3lb Sterilized Grain Mushroom Bag With Injection Port Mushroom Substrate Grow Bags Fast Colonization Mushrooms Sterilized Bags - Etsy](https://i.etsystatic.com/16322820/r/il/0770f9/3381631123/il_fullxfull.3381631123_smu1.jpg)
3lb Sterilized Grain Mushroom Bag With Injection Port Mushroom Substrate Grow Bags Fast Colonization Mushrooms Sterilized Bags - Etsy
![Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Wheat) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Wheat) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/4125+2n+goL._AC_UF894,1000_QL80_.jpg)
Amazon.com : BetterFungi 3 Lb Sterilized Grain Bag with Injection Port (Wheat) - Make Your Own Master Grain Spawn : Patio, Lawn & Garden
![Amazon.com : MushroomSupplies.com Sterilized Grain Bag for Mushroom Growing | Millet Substrate | 0.2 Micron Filter Mycobag Grow Kit | Mycology Cultivation Supplies (3LB) : Patio, Lawn & Garden Amazon.com : MushroomSupplies.com Sterilized Grain Bag for Mushroom Growing | Millet Substrate | 0.2 Micron Filter Mycobag Grow Kit | Mycology Cultivation Supplies (3LB) : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/81TDJ9NbnYL._AC_UF350,350_QL80_.jpg)