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Grain Cube Reload

based on 1 reviews $19.99



Our premium, autoclave-sterilized, fresh grain cubes are the perfect nutrient-rich medium for germinating your mushroom spores. We use high-quality Colorado-grown grain, cooked to perfection, and hand-packed in our Denver production facility.

Always shipped fresh to you within 48 hours of sterilization.

Guaranteed 10-day contamination free or your money back.

  • Grain Spawn Guarantee
  • Free Shipping over $50
  • Pro. Grower Phone Support

BoomBox vs the other guy's All in One Grow Kits

  • We designed the perfect system for growing magic mushrooms at home...
  • American Grown; High quality grain spawn straight from Eastern Colorado & autoclave sterilized by the Fanatics in Denver. Every kit supports local farmers.
  • Colonization Guarantee; if you have any issues innoculating your grain spawn or if your kit doesnt colonize we'll send you a fresh kit free of charge.
  • Dehydrated Substrate; Fresh, dried coco coir ready for pasturization when you are. With other all in one grow bag kits your substrate sits for days collecting and growing bacteria.
See Our Kits In Action โ†’

Customer Reviews

5 Based on 1 reviews
Great product!!Excellent product! Super easy to work with. Iโ€™ll be coming back for more!!
Preston M. Verified Purchase