Unicorn bags for mushroom growing are made of polypropylene so you can fill with substrate then sterilize in an autoclave or pressure canner. Once cool inoculate with your mushroom culture in your sterile lab or “still air box” and seal. Bags can be sealed with an impulse heat sealer, bag clamps, or zap strap. The filter patch allows for air exchange while keeping contaminants out.
Sold by the box of 1,000 or in bundles of 10 or 100 bags. Note: X-Large bags are sold by the box of 500.
BOX ORDERS: Contact us to place box orders. While we strive to have a few extra boxes on hand, we often sell out. If we do not have them in stock, your order will be included with our next monthly order from Unicorn bags. Since Unicorn manufactures to order, then ships to us from Texas, it can take up to 5 weeks to receive your order. Please plan in advance so that we can meet your needs. We can order in any type of bag that Unicorn produces. See their full selection at unicornbags.com.
We typically stock the following Bag Sizes and Filtration Options:
X-Large: Holds ~10-12 lbs of substrate
XLSA -(0.5 micron) (10″ X 5″ X 24″) 3.0 Mil Polypropylene
XLSB -(5 micron) (10″ X 5″ X 24″) 3.0 Mil Polypropylene
Large: Holds ~5-6lbs substrate
14A -(0.5 micron) (8″ X 5″ X 19″) 2.2 Mil Polypropylene
3T -(0.2 micron) (8″ X 5″ X 19″) 2.2 Mil Polypropylene
3B -(5 micron) (8″ X 5″ X 19″) 2.2 Mil Polypropylene
Med: Holds ~2-4lbs substrate
10A (0.5 micron) 5″X4″X18″ 3.0mil Polypropylene
10T (0.2 micron) 5″X4″X18″ 3.0mil Polypropylene
Small: Holds ~1-2lbs substrate
4T (0.2 micron) 4″X3″X18″ 3.0mil Polypropylene
About the Filters:
T Filter – 0.2 micron provides highest filtration and least gas exchange. Best for grain spawn.
A Filter – 0.5 micron provides high filtration while allowing more gas exchange than T filters. Good for fruiting blocks.