Description
At Ten Mile Mushrooms, our grain spawn is made from high-quality, sterilized millet and other nutrient-rich grains, fully colonized with vigorous mushroom mycelium. This is the same premium-grade spawn we use on our farm every day to produce consistent, high-yield crops.
Grain spawn is the foundation for fast, healthy mushroom growth. The nutrient density of wheat and grain gives mycelium the perfect environment to thrive, allowing it to quickly colonize your bulk substrate—whether that’s sawdust, straw, or your own custom blend.
Our grain spawn can be used in several ways:
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Inoculate bulk substrates for fruiting.
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Produce sawdust spawn for outdoor or log cultivation.
Because grain is so nutrient-rich, it requires careful handling to avoid contamination. We recommend working in clean, sterile conditions—just like we do in our own lab—to ensure the healthiest and most productive results.
Whether you’re a hobby grower or running a commercial farm, our wheat-based grain spawn will give you a strong, reliable start for your next mushroom crop.













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