If your oven is self-cleaning, remove the racks before cleaning. The self-clean cycle heats the oven to burn off food and oil.
After you've removed the wire racks, use a wet rag or sponge to remove any loose bits of food and grease that are in the oven.
Open neighbouring windows and operate your kitchen exhaust fan to reduce smells and smoke.
If you can't recall the last time you ran a self-clean cycle, the scents may be unpleasant, but you shouldn't leave until it's completed.
While the oven is self-cleaning or being cleaned, wash the racks with warm, soapy water. Use a scrub sponge or scouring pad to remove tenacious muck.
Use a moist sponge or towel to remove ashy food particles from the oven after the self-cleaning cycle.
Wipe away oven cleaning with a damp sponge and rinse the interior with water.
Finally, replace the oven racks and wipe the glass pane inside and out using a degreasing cleaner and microfiber cloth.
Non-scratch scrub sponges can remove grease splatters. Forté advises against disassembling oven doors to clean between the glass layers.