Overcooked foods, especially popcorn can lead to odors. Be sure to clean up spatters and spills to reduce the chance of odors developing. Spills clean up easily with a damp, soapy paper towel or sponge. It is best to clean soil as soon as it appears. Baking soda and water may also be used. Odors can be removed by boiling a cup of water with lemon juice or vinegar. For stubborn soils, boil a cup of water in the oven for 2 to 3 minutes and let stand. Steam will soften the soil for easy removal. Sometimes you may leave the door open for 2-3 hours when the microwave is not in use to let the microwave "air out". Some extreme odors like fish or burned popcorn may take several days to dissipate.
