While not real commercial, you'll be amazed by this stuff. After working with it for almost 2 years I've found nothing close in quality. Unfortunately, something is wrong in my room and everyone got sick. So, sprayed room down with bleach water, pulled out carpet and repainted and cleaned everything. Won't know for sure for awhile but started some BB cheese and bluecheese and hoping they come out ok. If this doesn't work I'll have to move and start again somewhere else, that's sucks.