SuperSpore All-In-One Mushroom Substrate Grow Bags offer you the easiest way to grow your favorite mushrooms from the convenience of your home! Our all-in-one bag contains a unique mixture guaranteed to provide your mushrooms with the nutrient-rich ingredients that they will love. Our bags contain ZERO animal by-products and use only autoclave sterilized ingredients leaving you an all-in-one bag free of harmful bacteria, viruses, fungi, and spores.