How to Clean the Inside of Your Microwave

Microwaves accumulate splatter and stuck-on food faster than almost any appliance in your kitchen. The heat and moisture create a grimy film that gets harder to remove the longer it sits. The good news: you don't need harsh chemicals or elbow grease. Steam does the work for you. A simple water-and-acid treatment—lemon juice, vinegar, or even plain water—softens everything at once, and a damp cloth finishes the job in minutes. This is one of those rare cleaning tasks where the method is actually easier than the mess looks.

1. Empty and Remove the Turntable. Take everything out of the microwave and lift out the glass turntable. Set it aside in the sink—you'll clean it separately with hot soapy water and a sponge. This gives you full access to the interior walls and floor.
2. Fill a Microwave-Safe Bowl with Water and Acid. Pour 2 cups of water into a microwave-safe bowl and add either 3 tablespoons of lemon juice, white vinegar, or a lemon cut in half. If you have neither, plain water works—it just takes a minute or two longer. Set the bowl in the center of the microwave cavity.
3. Microwave on High for 5 Minutes. Close the door and run the microwave on high power for 5 minutes. The water will boil and create steam that fills the entire cavity and loosens all the dried food, grease, and splatters from the walls, ceiling, and floor. You'll see condensation building on the interior.
4. Let It Rest and Cool for 2 Minutes. After the timer stops, leave the door closed for another 2 minutes. The residual heat and trapped steam continue to soften the baked-on food. This resting time is what separates an easy wipe from a frustrating scrub.
5. Carefully Remove the Hot Bowl. Open the microwave door slowly to avoid a face full of steam. Use an oven mitt or kitchen towel to grip the bowl and carefully pull it out. Set it on the counter to cool. Be cautious—the water is boiling and the bowl is very hot.
6. Wipe Down the Interior Walls and Ceiling. Using a damp cloth or sponge, wipe down the entire interior starting at the top and working your way down. The steam has softened everything, so the cloth should glide over deposits without resistance. Pay special attention to corners and the ceiling where splatters accumulate. A second pass with a clean, dry cloth removes excess moisture.
7. Clean the Floor and Wipe the Window. Wipe down the floor of the cavity, then tackle the interior of the door—both the glass and the rubber gasket around the edges. The gasket collects splatters and old food particles. A damp cloth gets into the grooves easily after the steam treatment.
8. Reinstall the Turntable and Dry Everything. Place the clean turntable back into the microwave, making sure the center stem seats properly. Run one final quick pass with a dry cloth to remove any remaining moisture from the walls and ceiling. Close the door and you're done.