: Let it sit for at least 12 hours or overnight to break down stubborn grime [10, 12, 24].
: Mix 1/2 cup of baking soda with a few tablespoons of water until it reaches a spreadable consistency [12, 30].
: Coat the interior walls, bottom, and door, avoiding the heating elements [10, 24, 30].
For lighter build-up, you can use to loosen grease in under an hour [7, 27, 28].