Especially when you are cooking something spicy in the microwave, or worse, accidentally burned something in the microwave, it can be hard to remove the lingering smell. And it can even cause foods cooked well after to absorb the “taste” from the odor. But fortunately, you can remove odors from your microwave oven easily and inexpensively.
Fill a bowl with water, and add a small amount of lemon juice. Microwave for 1-2 minutes (it will boil and steam) then wipe out the inside of the microwave with a clean cloth. If necessary, repeat.