Substrates & Sterilized Grain

Browse our collection of substrates & sterilized grain, the essential foundation for growing your own mushrooms. Created in Baltimore's premier mushroom laboratory, our substrate is pasteurized for twelve hours in a barrel, and our grain is sterilized in our laboratory grade autoclave. We optimized a high-quality process to ensure optimal growth conditions for a thriving and bountiful harvest. Discover the joy of mushroom cultivation with these reliable and expertly crafted supplies, designed to support your at-home growing endeavors.