Unicorn mushroom bags are widely recognised as being probably the best quality bags available. The Unicorn 10T bag is perfect for mushroom spawn and as grow bags for many types of mushroom. Made of 3.0 Mil Polypropylene, these side-gusseted breathable bag make for sturdy stand-up bags after filling and have a strong bottom seal that can withstand agitation (for example when beaking up colonised grain spawn.).
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