Generally, Ammonia solutions are used to clean, bleach, and deodorize; to etch aluminum; to saponify (hydolyze) oils and fats; and in chemical manufacture. The ammonia sold for household use is a dilute water solution of ammonia in which ammonium hydroxide is the active cleansing agent. read more
Then, wipe it clean using the ammonia and a few drops of dishwashing liquid diluted in a quart of warm water. Even old baked-on grease should wipe right off! WARNING: Do not use this cleaning method with a gas oven unless the pilot lights are out and the main gas lines are shut off. read more