Bag Culture Supplies

Mycology-Supply โ€ข Bag Workflow Gear

Bag Culture Supplies

Empty Unicorn-brand grow and spawn bags, calibrated fill tools, and adherable injection ports. The consumables and workflow gear for cultivators preparing their own grain and bulk substrate bags from scratch โ€” plus accessories for anyone using bags from the wider catalog.

๐Ÿ›๏ธ Unicorn-brand bags ๐Ÿ”ฌ 0.2 & 0.5ยตm filters โš–๏ธ Calibrated fill tools ๐Ÿ’‰ Adherable ports
Bag culture supplies โ€” Unicorn mushroom grow bags, calibrated fill scoops, adherable injection ports
Bag Workflow Gear
9 SKUs
In stock
4 Bags
3T ยท 4T ยท 10T ยท XLS-A
2 Scoops
5 lb + 10 lb
3 mil
Bag wall thickness

Pre-sterilized grain bags and bulk substrate bags handle most cultivation out of the box. These supplies are for everyone else โ€” cultivators filling, sealing, and sterilizing their own. Unicorn spawn-master bags with 0.2 micron filters for grain, the XLS-A sawdust bag with 0.5 micron filter for hardwood bulk substrate, calibrated bulk-media scoops for consistent fill weights, and adherable injection ports for any vessel that didn't ship with one.

Quick Answers
The 3T, 4T, and 10T are spawn-master bags with a 0.2 micron filter patch โ€” sized for grain (3T smallest, 10T largest, 4T the most common middle ground). The XLS-A is a sawdust / bulk substrate bag with a coarser 0.5 micron filter sized for hardwood-pellet bulk substrate runs where the substrate breathes more aggressively during colonization. Match the bag to the medium you're filling.
The filter patch on a Unicorn bag lets gas (COโ‚‚ out, Oโ‚‚ in) pass through while blocking airborne contaminant spores. The micron number is the pore size: 0.2 micron blocks essentially all bacterial and mold spores, used on grain bags where contamination risk is highest. 0.5 micron allows more aggressive gas exchange for bulk substrate where the substrate is producing more COโ‚‚ during heavy colonization. Both are sterilization-safe; the difference is breathability vs filtration tightness.
Three reasons. Custom formulations โ€” mixing your own substrate ratios or grain blends. Scale economics โ€” once you're running enough volume, sterilizing your own bags is cheaper per pound than buying pre-sterilized. Specialty species โ€” some species do best with substrate recipes we don't carry pre-sterilized. The trade-off is needing your own pressure sterilizer or steamer at the scale where this makes sense.
Self-adhesive ports that stick onto any sterile vessel โ€” a canning jar lid, a bag without a built-in port, a culture flask. Peel the backing, press onto a clean surface, and the port self-heals between needle injections. Useful when you're working with bags or vessels that didn't ship with ports built in (most XLS-A bulk substrate bag prep, for example), or when scaling a workflow where the right pre-fab vessel isn't available.

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