Milliken Mushroom Supply | Spawn Bags with 0.2-Micron Filter. 25 Professional Mushroom Grow Bags Designed for Grain Spawn

Professional mushroom grow bags! Imagine making flawless, contaminate-free spawn bags every time with our professional grow bags. These bags are super strong and remain pliable before and after sterilization. They feature a 2-micron gas exchange microporous filter which protects grain spawn against airborne contaminants while allowing for ideal air exchange. Our bags feature a proprietary plastic composition that is pliable and reduces the chances of holes or tears in the bag after sterilization. The unique woven micropore filter is breathable which allows the bags to be fully sealed before sterilization. These Mushroom spawn bags are extremely versatile and are best used for spawn colonization or as an all-in-one grow bag. Size: Medium 5 X 4 X 18 – Holds 3 quarts of hydrated grain spawn. Bag Type: Gussetted Thickness: 3.0 Mil Gas Exchange Filter: 2 microns Suggested Sterilization Times at 15 PSI: 3 LBS Grain —120 mins