Out Grow now offers live mushroom spawn. This is a 3lb bag of fully colonized organic rye grains equal to 3 quarts of spawn. This bag can inoculate up to 15lbs of bulk substrate or up to 30lbs worth of grain to grain transfers. Guaranteed to be contamination free and ready to use once it arrives. You can add this spawn to a mushroom substrate for growing your own mushrooms. You can also do a grain transfer to sterilized grains and make more of your own spawn. We will be adding different strains as we have them ready.