The Premium Grain Bag for Mushroom Spawn (Spawn Bomb™) is designed to make growing clean, healthy mushroom spawn simple, fast, and reliable.
Whether you’re preparing spawn for a Shroom Bomb Tub, shoebox grow, or another bulk substrate setup, these grain bags give you a strong, consistent foundation for mycelium growth.
Just inject the Spawn Bomb™ with your favorite manure-loving or wood-loving spore syringe (syringe not included) and watch the mycelium take off.
This product has multiple variants. The options may be chosen on the product page
The Premium Coco Coir, Vermiculite & Gypsum Bag (CVG Bomb™) is designed to help you get bigger, healthier mushroom harvests when expanding your fully colonized grain spawn into bulk substrate.
This CVG Bomb™ uses our proprietary blend of premium Coco Coir, Vermiculite, and Gypsum, pre-hydrated and ready to use — no mixing, measuring, or guesswork required.
Just combine your fully colonized Spawn Bomb™ grain bag (sold separately) with this CVG Bomb™ in a tub, and let the mushrooms do their thing.
This product has multiple variants. The options may be chosen on the product page
