HomeMycology SuppliesGrow Jars Grow Jars Grain jars are used to cultivate and store beneficial fungi before introducing them to the growing medium. Category: Mycology Supplies Tags: Grow Jars, Mycology Supplies Product ID: 29748 Description Description Grain jars are used to cultivate and store beneficial fungi before introducing them to the growing medium. Related products Cultures Read more AEG Revert: Chocolate Gill $25.00 Buy now Albino Emerald Gate $25.00 Buy now