1. Fill a microwave safe glass or bowl half way with water with a tablespoon of white vinegar and place inside the microwave. Turn on for 5 minutes. What you’re trying to do is loosen up the dried-on gook.
2. When it is done, remove the glass container and wipe down the inside of microwave with a clean towel or paper towel.
3. The loose gook should come off easily now, and without chemical cleaners inside the microwave.
4. Take out the glass tray or turntable and wash it like a dish. You could even run it through the dishwasher if you have one.