Pre-soaked and sterilized in a 1 quart glass jar with injection port for mushroom growing (mycology). Twice the size of all of the other suppliers.
Inject your live culture or spores into this prepared jar to create grain spawn.
Perishable, use as soon as possible.
While many of our products have free shipping, the shipping costs for heavier items are calculated by weight and distance. Please consider the labor and resources required for shipping and understand that we cannot provide free shipping on some items. We offer a local pickup option at our warehouse in Northern California near Sacramento.