Interested in taking advantage of our vacuum style sterilization system with your own phenotype of fungi!? These 6 LB blank grain bags are comprised of Certified Organic Rye and Millet and are shelf stable after we sterilize them. They are equipped with an Microppose injection port and double bagged to maintain sterility while retaining grain moisture content for a longer period of time. Inject them with a liquid culture or spore syringe in still air or toss in a fresh plate of your own in front of the flowhood and you've got lighting-fast colonizing grain spawn.