Popcorn Bulk Substrate Grain Bags (25 lbs)

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Our Popcorn Mushroom Substrate Grain Bags are an excellent choice for mushroom cultivation, offering large, firm grains that provide ample surface area for mycelium to colonize. Th is bulk pack includes 5 x five-pound bags of fully hydrated and sterilized popcorn, ready for inoculation. Popcorn grains are known for their resilience and high moisture content, making them a reliable substrate for a wide variety of mushroom species. Whether you’re a commercial grower or an avid home cultivator, our bulk option ensures quality results while saving time and money. Show more