Remove oven racks and soak them in hot soapy water
Wipe loose debris with a damp paper towel or cloth
For light buildup: spray oven interior with an oven cleaner or a baking soda paste (baking soda + water)
For heavy buildup: use a commercial oven cleaner following the label directions
Let cleaner/paste sit for the recommended time (typically 30 minutes to overnight for baking soda paste)
Scrape softened grime with a plastic scraper or non-scratch sponge
Wipe the interior with a damp cloth to remove residue
Re-clean stubborn spots with additional paste and a gentle scrub pad
Clean the oven door glass (apply cleaner/paste, let sit briefly, then wipe clean)
Clean oven walls, ceiling, and corners thoroughly
Rinse and wipe again until no cleaner residue remains
Dry surfaces with a clean cloth
Reinstall the oven racks after they are fully dry
Run the oven on a low temperature (about 250°F / 120°C) for 10–15 minutes to burn off any remaining residue if needed