SANXIA 10 Pack Mushroom Grow Bags, 8" X 5" X 20" Autoclavable Mushroom Spawn Bags with 0.2 Micron Filter, 80 Micron Breathable Mushroom Substrate Bag for Mushroom Grains - SANXIA139

• 🍄【Durable Polypropylene Material】: The mushroom growing bags are made of high-quality polypropylene material,80 micron (=3 Mil) thick (one side), which is sturdy and durable, has good tear resistance, and is not easily damaged. Being able to withstand the high temperatures of the substrate disinfection process, it is the best choice for growing mushrooms. 🍄【Large Size Mushroom Growing Bags】: The package contains 50 pcs mushroom grow bags, the quantity is enough to meet your usage needs. Dimensions: 8"x5"x20", large size, can provide enough space for mushrooms to grow, spawn and fruit, so that the mushrooms can grow better. 🍄【0.2 Micron Filter Patch Design】: Each mushroom growing bags is designed with a 0.2 micron filter, which allows free exchange of gas while preventing pollutants from entering, providing optimal filtration without sacrificing breathability. No need for drilling and oxygen supply. 🍄【High temperature resistant】: Mushroom growing bags resist up to 399°F (126°C). If you are using a pressure cooker (PC) to sterilize your substrate, ensure that the bags don't have direct contact to the surface of the pressure cooker. You can put a layer of aluminium foil before sterilize. Direct contact with a heated surface, under pressure can cause the bags to deform or burst. 🍄【Wide Application】: Mushroom grow bag filter can not only be used to inoculate mushroom oyster spawn, clone oyster mushrooms, and bamboo fungus Ganoderma mushroom, but also can be used for spawn bags and sawdust fruiting blocks. Great for school projects, hobbies, and even professional mushroom growers, farmers, mushroom cultivation.