Amazon.com : BetterFungi Sterilized Rye Grain Mushroom Substrate in Injectable Jars (2 Jars Per Order) - Each Jar Has a Self-Healing Injection Port and a Filter : Home & Kitchen
Spawn Bags vs. Substrate Jars: Which Is Best for Growing?
How To: Injection Port Lids & Bags for Mushroom Cultivation - Zamnesia Blog
How To Get Started Growing Mushrooms At Home (From EASY to HARD) - YouTube
Four Quart Jars of Sterilized Rye and Four One Pound Bags of Manure Based Substrate