Hydrated and Sterilized Master’s Mix Grow Bag from Doom Loop Naturals! Sterile, sealed, easy to use!

Introducing the best fruiting substrate for Oysters and Lions Mane, and more ! (Spores/ spawn/culture not included.) Our Hydrated and Sterilized Master’s Mix Grow Bag is another way to easily cultivate the gourmet mushrooms of your dreams! Just follow the simple instructions to add the spawn of your choice, and let nature take over! (With some help from you of course!) Gourmet mushrooms love this sterilized nutritive substrate. The convenient just-right over 2 and half pound size is great for hobbyists to begin an urban mushroom farming journey!