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Quantity
1
5-Pound Mushroom Grain Spawn Bags
Get started on your mushroom-growing journey with our premium mushroom grain spawn bags! We store our bulk grain spawn in superior-quality Unicorn bags made in the USA, with a validated 0.5-micron filter pa...
Reviews
5.0
8 ratings
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So far so good it’s been about 10 days since an inoculation and I’m getting mycelium in both bags. Thank you.
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Anonymous · November 30, 2025
100% hit rate. It’s been a relief and given me some piece of mind. Great stuff!
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Anonymous · October 6, 2025
Best deal & the best product!
Grain bags look great as usual! Shipping was fast and the price was excellent. You won't find a better deal or a better product!