Mushroom *shiitake* indoor growing
I recently bought a mushroom kit and was wondering what substrate I can use to increase my production yield. I know I need oak sawdust but the other ingredients are hard to figure out I tried asking the people who sold it to me but they act like I am not smart enough to understand how to culture my own spawn so here I am asking on the site to see if anyone on here knows, I would love to get a fully sustained mushroom garden growing so I don't have to keep ordering kits when they die out