Fill a microwaveable bowl with 1-2 cups of water and add a dash of vinegar (about a tablespoon or two). Put the bowl in the microwave, shut the door, and turn it on for 5 minutes. Then take a cloth and wipe down the inside of the microwave; the dirt and food will come right off!
How to clean your microwave in 2 minutes
Deep clean your microwave in 5 minutes!