Instructions: Pre-heat oven to 200 degrees. Leave oven on for 15 minutes; turn off and leave the door closed.

Fill a shallow baking pan with ammonia and place on the top shelf of your oven. fill another pan with 2 cups boiling water and place on the bottom shelf. Close oven and leave pans in for at least 2 hours or overnight.

Remove ammonia and make a past of ammonia, baking soda and vinegar. Spread paste on oven surfaces, leave on for 15 minutes, and then scrub off with a sponge or steel wool.

Note: Clean up spills as they happen and you wont have to do this job very often.

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