Unicorn Bags 4A Full Case (1,000) OxoD Mushroom Grow Bag Extra Small Polypropylene 4″ x 3″ x 18″ 0.5 Micron Filter Biodegradable


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  • 0.5 Micron filter with 50% surface area available enables slow gas exchange for species that grow best in high CO2 environments such as shiitake (L. edodes, A. bisphorus).
  • Biodegradable – Oxo-Biodegradable additive, bag breaks down in a wide range of conditions and does not leave microplastics.
  • Autoclavable – Withstands high temperature and pressure for steam sterilization up to 120c.
  • Gusseted for strength and easy filling.

The Unicorn Bags 4A OxoD is a top-quality polypropylene bag designed for growing gourmet mushrooms which grow best in high CO2 environments. Made with a 0.5 micron, low surface area type A filter, this bag is engineered to moderate gas exchange and control humidity while keeping out contaminants. This makes it ideal for varieties such as button, shiitake, and pink oyster which prefer higher CO2 levels during their spawn run and maturation.

The standout feature of this bag is the OxoD technology, which ensures the bag degrades into its base components with long-term exposure to oxygen, heat, and light, making it an eco-friendly option. Upgrade to the Unicorn Bags OxoD line, and you’ll be doing your part to keep plastics out of our oceans and landfills.

Whether you’re a professional mushroom grower or a hobbyist, the Unicorn Bags 4A OxoD is the perfect choice for achieving consistent and high-quality mushroom yields. With its durable, heavy-duty construction, advanced filter technology and eco-friendly features, it’s a reliable and sustainable option that you can count on.

Type: Gusseted
Material: 3.0 Mil Polypropylene with an oxo-degradable additive
Bag Size: 4″ X 3″ X 18″
Filter Type: A
Filter Size: 1.5″X1.5″
Filter Pore Size: 0.5 microns
Filter Hole: Style L

Additional information

Weight 27 lbs
Dimensions 20 × 12 × 7 in

10, 20, 50, 100, 1000


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