Turn off the oven and let it cool completely
Remove racks, trays, and loose debris
Put on gloves
Mix warm water with dish soap or use an oven cleaner
Apply the cleaner to the interior surfaces
Let it sit for the recommended time
Scrub with a non-abrasive sponge or cloth
Wipe away loosened grime with a damp cloth
Clean the oven racks separately in warm soapy water
Rinse all surfaces with a clean damp cloth
Dry the interior and racks completely
Reassemble the oven once everything is dry