Grow Supplies
Sterilized Grain Spawn Bags with Self-Healing Injection Port — Pallet (360 bags)
360 of our 6 lb sterile millet & sawdust grain spawn bags with self-healing injection ports at our lowest per-bag price — built for commercial growers and wholesale operations needing consistent supply at scale.
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Switch sizes without leaving the page- • USDA Organic Certified · grown on our 70-acre Pennsylvania farm
- • Hand-packed for freshness · grower support included with every order
Our Sterilized Grain Spawn Bags with Injection Port — Full Pallet gives commercial growers and wholesale buyers 360 bags at our lowest per-bag price, $9.99/bag. Each 6 lb bag is made with the same balanced blend of millet and sawdust, pre-sterilized and hydrated to the ideal moisture ratio to support vigorous mycelial expansion. Every bag includes a self-healing injection port and filter patch — the self-healing silicone port seals automatically after each injection, allowing multiple inoculations without risking contamination.
Scaling up doesn't mean sacrificing consistency: every bag in this pallet is sealed in front of flow hoods, wiped with hospital-grade sterilizers, and stretch-wrapped to the same standard as our single bags, so you get reliable, contamination-free results across the full order.
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 at commercial volume.
Ordering for your operation? Reach out through our wholesale page for lead times and account setup.
