Product Shot
Syringe & packaging
Drippy Corn Sterile Grain Bag — 3lb
Quantity
What's in the bag
3lb Sterile Grain
0.2μm Filter Patch
Self-Healing Injection Port
Instruction Card
Viable culture guaranteed. If it arrives damaged, dead, or visibly contaminated, contact us within 48 hours with photos and we'll arrange a replacement or refund.
How we guarantee it arrives sterile
Autoclaved at 15 PSI
Real commercial-grade sterilization, not just pasteurized.
Batch-tested
Verified with biological indicators before shipping, not just pressure/temp logs.
0.2-micron filter patch
Lets air exchange through, blocks contaminants after sterilization.
Grain Bag Specs
Bag Size
3 lb — 10 × 6 × 6 in bag
Colonization
10–14 days once inoculated
Sterilization
Autoclaved 15 PSI / 100 min — verified per batch with biological indicators + temp/pressure logging
Moisture
~50% — hydrated and ready to inoculate
Recommended Inoculation
2.5–5cc liquid culture or 1–2cc spore solution
Shelf Life
4–6 months, stored cool and dark
Known across the grow community as "Drippy Corn" — whole-kernel corn packs more stored energy per bag than any other grain in our lineup, built for growers scaling from a single spawn bag into large-format bulk substrate. Its starch content keeps the substrate hydrated deep into colonization, even in drier grow spaces where leaner grains dry out.
Each bag is sterilized in a commercial autoclave at 15 PSI and pre-hydrated to spec, then batch-tested with biological indicators before it ships — ready to inject the moment it arrives. Corn's larger kernel size means slightly slower initial colonization than small-grain options, but it pays that back with substrate volume — one bag of corn expands further as bulk spawn than the equivalent weight in rye or millet.
Each bag: 3lb sterilized whole corn · 0.2-micron filter patch · self-healing injection port · shrooms instruction card. Store cool and dark until use.