Reinforced Mushroom Grow Bags, 25 Count, Oyster Spawn and Grain Root Substrate Growing Kit with 0.2 Micron Filter, Large 8” x 5” x 20”, Thickest Available Heavy Duty 3 Mil Polypropylene Plastic

ALL-PURPOSE MUSHROOM GROWING BAGS - These large mushroom grow bags are designed to help you grow fresh, healthy morels, oyster, enoki, portabella, and other mushroom types for a homegrown garden you can start in your backyard. HEAVY-DUTY POLYPROPYLENE PLASTIC - Our mushroom spawn bags are made from 3-mil polypropylene that supports a 5-10 lbs. spawn block and provides a stronger, more reliable growing area conducive with natural mushroom growth. BREATHABLE BAG WITH FILTER PATCH - A smarter design our mushroom substrate bags also features a 0.2’ filter patch that allows for optimal gas exchange for aeration and nourishment while preventing contaminants from impacting soil composition. LARGE MUSHROOM GROWTH BAGS - The larger 8” x 5” x 20” bag size allows you to use them for both traditional mushroom growing and spawn. They’re also autoclavable and have microporous filter patches to better support your growth process. TRANSPARENT WITH SEALABLE TOP - The thickest grow bags available The Magnificent Bee Store substrate bags for mushrooms can be sealed with a quick tie or an impulse sealer (not included) to help protect plants while also sealing in essential moisture.