(LABOR DAY SALE!) Coir is one of the best bulk mediums to grow mushrooms in. It's naturally resistant to mold and bacteria and mushrooms absolutely love it. When wet it expands to over 2.5 cubic feet. There are many different brands, styles and textures of coir sold for many different uses. We have hand selected Coco Coir, the best producing variety and brand available for growing mushrooms.
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