Showing a pic. of a dirty oven, and a new one, so all b.s.
You'll NEVER get all of it off, but most, and only with a lot of effort.
I don't use water, at all.
Pour vinegar on, (or spray it), scatter bicarb onto vinegar,
rub it in, and wait a while.
Paper towel is best, gently abrasive, and cheap.
