Even though the oven door doesn't come in direct contact with food, it is still susceptible to greasy build-up and baked-on food splatters. This can cause an unsightly mess on the glass inside the oven door. Commercial glass cleaners can clean the oven glass, but they don't cut through tough grease, so the glass will still look dirty. Vinegar is a common household product that has a number of uses, including shining glass and cutting grease, which makes it ideal for cleaning the oven.
Pour 1 cup of white distilled vinegar and 1 cup of cool water into a spray bottle. Replace the spray nozzle, and shake the bottle to combine the contents.
Open the oven, and spray the solution directly on the glass, covering it completely. Allow the vinegar to eat away at the grease for approximately 30 minutes.
Scrub the grease and baked-on food with a scrubber sponge. Rinse the sponge out, and then use the softer side to soak up the dirty water and vinegar. Continue rinsing and cleaning the glass until all of the grime is gone.
Spray the glass with the vinegar solution again, and wipe it with a clean cloth. This second vinegar application will get rid of any streaks and make the glass sparkle.
Allow the oven to cool before you clean it to avoid burns.