North Spore 5 Micron Filter Mushroom Grow Bags

These autoclavable mushroom grow bags are made of 2.2 ml thick polypropylene plastic and have a 5 micron filter for gas exchange. They are designed for indoor mushroom cultivation and spawn production.

• The bags are designed to withstand high temperatures.
• Polypropylene will melt above 25PSI and/or 350 degrees F.
• Prolonged direct contact with the base of an autoclave or pressure cooker can result in damage to bags.
• Bags should be lined with a cloth when used in an autoclave or pressure cooker.