I described above how I was growing lions mane. I’ve been experimenting, and Field and Forest videos introduced me to an easier method.
Take a mushroom grow bag, add to it 5 cups of hardwood pellets, a half cup of soy hull, and 5 cups of boiling water. Shake and fold the bag top shut and turn upside down so no air enters it. Let cool for several hours or overnight. Add 1.5 cups of lions mane grain spawn.
I buy spawn from NorthSpore and a bag will make 13 grow bags.