Self-cleaning electric ovens often require manual cleaning as well. Baked-on food, grease and grime do not always come off in the self-cleaning mode. Commercial oven cleaners are available for use to clean electric ovens; however, they contain harsh chemicals that can be hazardous to your health and the environment alike. Clean an electric self-cleaning oven manually without using toxic chemicals. You may be surprised at how clean the oven will get with everyday products you likely already have at home.
Heat the electric oven to 150 degrees. Turn the oven off.
Bring a large pot of water to boil on the stove top. Place the pot of boiling water into the oven on the bottom rack. Fill a bowl with one-half cup of ammonia and place it on the top rack inside the oven.
Shut the door to the oven. Allow the pot and bowl to remain in the oven overnight.
Remove the pot and bowl from the oven in the morning. Keep the oven door open for a bit to allow the inside to air out.
Pour the bowl of ammonia into a bucket with 1 quart of warm water. Add a few drops of dish soap to the mixture. Remove the racks from the oven and set aside. Dip a rag in the cleaning solution and wipe the oven clean.
Place an old towel into the bathtub or a washtub. Place the oven racks in the tub. Fill the tub with enough warm water to completely submerge the racks. Pour one-half cup of ammonia into the water and allow the racks to soak for a minimum of 15 minutes. Remove the racks from the tub, rinse them off with plain water and wipe clean with a dry rag.
Baking Soda Method
Place a funnel over an empty spray bottle. Pour 3 tsp. baking soda into the spray bottle.
Run water through the funnel to push through all of the baking soda until the bottle is filled. Shake the bottle until the baking soda has dissolved completely.
Spray the mixture into a cold oven. Be sure to spray the entire oven, including the top and oven racks. Do this at least once a day for several days without wiping off the previous applications of baking soda.
Use the oven just as you normally would. Continue spraying the baking soda mixture into a cold oven. After several uses of the oven, the grime inside of the oven will begin to fall off.
Wipe the oven clean with a damp rag after all of the grime has loosened. This may take several applications of the baking soda mixture, depending on how dirty the oven was to begin with. The grime will come off freely once the baking soda has loosened it.