For the cleanest results, be sure to thoroughly scrub and soak all areas and parts of your oven ... of the built-up grime How to Clean the Inside of an Oven A good place to start is the inside ...

The entire inside of the oven was coated with aluminum foil and ... out in his workshop – cooking up some fresh powder coated parts.

If want more information on what useful parts are inside then check out this primer. Or you can leave the parts in and use the oven as is for melting lead, but keep a fire extinguisher handy.