Grow Supplies
Sterilized Grain Spawn Bags with Self-Healing Injection Port — Single Box (6 lb)
FALLMORE gives 40% off — applied to the first $200 of your order (max $80 off). Items beyond $200 are full price. One-time use per customer.
Sterile millet-based bags with a self-healing injection port for repeatable, contamination-free inoculation. Ideal for all cultivators seeking fast colonization and high success rates in grain inoculation.
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Switch sizes without leaving the pageOur Sterilized Grain Spawn Bags with Injection Port are made with a balanced blend of millet and sawdust, pre-sterilized and hydrated to the ideal moisture ratio to support vigorous mycelial expansion. Each 6 lb bag includes a self-healing injection port and filter patch for easy, sterile inoculation — the self-healing silicone port seals automatically after each injection, allowing multiple inoculations without risking contamination.
Optimized for use in clean environments between 70–78°F, this grain substrate supports a wide variety of mushroom species, delivering fast colonization and vigorous growth for home growers and large-scale cultivators alike.
Every bag is sealed in front of flow hoods, wiped with hospital-grade sterilizers, and stretch-wrapped to prevent contamination or shipping damage. Simply inject your culture, shake gently, and wait for full colonization.
Bulk and wholesale options available — ask about discounts on pallet orders of 300 or more.
