Clean your oven without toxic chemicals by using: baking soda, table salt, dish soap, and water. You will also need a spray bottle, rubber gloves, plastic scraper, a bowl, and sponge. Mix 1 cup baking soda, 1/3 cup of salt and 1/3 cup water. Remove the racks and spray with water. Spread the salt mixture on entire oven interior. Allow it to sit overnight. Scrape dried mixture off with scraper or spatula and wipe up debris with a clean damp sponge. Continue to wipe and rinse until the surface is clean. The final cleaning should be with warm soapy water. Enjoy your safely cleaned oven.