• READY TO GROW: This premium 3lb grain spawn bag contains 100% sterile hydrated grains with injection port for inoculation of your choice of mushroom cultures. Professionally prepared using a precise steam sterilization process, each bag eliminates the need for home pasteurization of grains. Simply inject and incubate for colonization.
• MAXIMUM STERILITY: The self-healing injection port maintains sterility during inoculation while the 0.2 micron filter patch allows fresh air in, and keeps contamination out!
• CONVENIENT AND PORTABLE: At just 3lbs, this grain spawn bag is lightweight for easy storage and transportation. The simple design means it's ready when you are for successful mushroom cultivation.
• HIGH YIELD DESIGN: At 3 pounds of grains, this large bag provides plenty of nutrient substrate to support robust mushroom flushes. Yields are scaled for home and hobby cultivation.
• PROPERLY HYDRATED: We take the hard approach. Read below why our bags perform better w/ fast colonization.