Sterile Grain Bag — Compact (1 kg)

The same meticulous sterilisation process as our standard bag, in a more compact 1 kg format. Ideal for growers who want to work with multiple grain varieties at once, test a new species without committing a full-size bag, or keep their spawn production small and low-risk.

The Unicorn 4T bag format is tight, stackable, and easy to work with in smaller spaces. One colonised bag gives you enough spawn to inoculate a shoebox-style fruiting container or to top-up a bulk substrate mix alongside a larger jar.

Grain choices

• Corn
• Wheat
• Pearl Millet
• Sorghum

Included

• 1 × Sterile grain bag (~1 kg) in Unicorn 4T bag
• Microprose self-healing injection port (pre-installed)
• 0.2-micron air filter

Suitable for all mushroom species. Produced in batches — ships after 4 working days processing.