If you have an oven that looks like it has seen some things, here is the fast, low-cost reset that saved mine. It relies on heat and steam over heroic scrubbing. Plan on about an hour start to finish, with 15 to 30 minutes dedicated to softening the mess so the rest feels easy.
What you need on hand
A deep, oven-safe pan or rimmed baking sheet that fits your oven, very hot water, 1/2 cup baking soda, 2 to 3 tablespoons liquid dish soap, a stiff-bristle brush, and a couple of sponges or cloths (plain and abrasive-sided). For stubborn patches, keep an abrasive scouring cleaner with fine grit nearby. That simple mix covers everything.
How to do it
- Soften the buildup. Fill the pan about halfway with hot water. Stir in 1/2 cup baking soda and 2 to 3 tablespoons dish soap. Slide the pan onto a rack, heat the oven to 200–250 C (about 400–480 F), and let it run for 15–30 minutes. The solution will gently simmer; the steam and vapors loosen baked-on grease and carbon. Go longer for heavier grime.
- Treat the walls. Carefully pull out the hot pan. Dip the stiff brush into the same hot solution and work over the oven walls, floor, and door. The softened gunk releases with minimal effort. Drop the racks and any removable bits straight into the pan to soak while you continue.
- Handle the tough spots. For the truly stubborn areas, mix a quick paste: baking soda plus a little abrasive scouring cleaner until it feels like wet sand. Load it onto a sponge or brush and go over the stains. The residual heat in the oven amplifies the effect.
- Finish clean. Wipe out residue and any leftover paste with a damp cloth. Abrasive-sided cloths grab lingering grease especially well. Dry everything with a clean towel for a streak-free finish.
The payoff
Expect a noticeably brighter cavity and racks that look close to new. The process uses pantry basics, carries minimal odor, and performs even on heavy, cooked-on mess. The real trick is patience during that softening phase; give the steam time to work and your arms get a break.