If you use your microwave a lot, you probably have found that food often sticks to the inside. A method that we use to clean our microwave is to fill a cup with about 8oz of vinegar, put this in the microwave and microwave on high until it boils. Let sit for a couple of minutes. Then, remove the cup (use caution) and wipe down the inside with a moist towel. Every once in a while, I may have to scrub some of the food residue off, but for the most part it all wipes of easily with this method.