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How to Clean a Microwave

The microwave is one of the most used appliances in many homes, yet it’s often overlooked during regular cleaning. Spills and splatters can build up quickly, creating lingering food odors, encouraging bacteria growth, and even impacting efficiency.

With a few natural ingredients and simple steps, you can sanitize your microwave and leave it smelling fresh and running smoothly. There’s no need for harsh chemicals or hours of scrubbing when you can clean a microwave with vinegar and other household items.

Safety First

Before cleaning your microwave, take a few steps to avoid safety hazards and protect the appliance. If you’re planning a deep clean or need to move the microwave, unplug it first to help prevent the risk of electric shock.

Never use bleach, oven cleaners, or other harsh chemicals inside the microwave — these products can release fumes or residue that transfer to your food. Avoid abrasive pads or steel wool, which can scratch the interior walls and damage protective coatings. Stick to soft cloths and sponges, and use food-safe ingredients such as white vinegar, baking soda, and lemon.

Have a stainless steel microwave or other stainless steel appliances? Learn the best way to clean stainless steel appliances for streak-free finishes.

Supplies You’ll Need

For the best way to clean a microwave naturally, gather these household items:

  • Microwave-safe glass or ceramic bowl

  • Distilled white vinegar or fresh lemon slices

  • Baking soda

  • Water

  • Soft sponge or microfiber cloth

  • Dish soap

  • Small brush or old toothbrush

  • Dry towel

  • Optional: A few drops of lemon or lavender essential oil for deodorizing

Step-by-Step Cleaning Method

Maintaining a naturally fresh and spotless microwave doesn’t have to be difficult or time-consuming. Follow these five simple steps for the easiest way to clean a microwave.

Step 1: Steam Clean with Vinegar or Lemon

Loosening dried-on food with steam makes the cleaning process easier and minimizes scrubbing. This natural method softens stubborn splatters, breaks down grease, and leaves behind a fresh, chemical-free scent:

  1. Fill a microwave-safe bowl with one cup of water.

  2. Add two tablespoons of white vinegar and a lemon wedge to the bowl to clean the microwave with a lemon-fresh scent.

  3. Place the bowl in the center of the microwave.

  4. Microwave on high for three to five minutes or until the window steams up.

  5. Leave the door closed for another five minutes to let the steam work.

Interested in other appliances that can be cleaned with vinegar? For those who love their morning brew, read our guide on how to clean a coffee pot with vinegar.

Step 2: Wipe the Interior

Once the steam loosens the residue, carefully remove the hot bowl and set it aside. Using a damp sponge or microfiber cloth, wipe down interior surfaces, including the ceiling, sides, base, and inside of the door.

For stubborn spots, mix two tablespoons of baking soda with a splash of water to form a thick paste. Dip your sponge in the baking soda paste, gently scrub off stuck-on grime, then wipe clean with a damp cloth. This method lifts grease and neutralizes odors without scratching.

Step 3: Clean the Turntable

Remove the glass turntable and wash it with warm, soapy water in the sink. If it’s dishwasher-safe, run it through a quick cycle. Let the turntable dry completely before returning it to the microwave.

Step 4: Clean the Exterior

Wipe the outside of the microwave with a cloth dampened with warm water and soap. Use a small brush or vacuum crevice tool to gently clear crumbs or dust around the base or back of the microwave.

Pay extra attention to these spots:

  • The door handle

  • Touchpad or buttons

  • Vents and top surface

Step 5: Deodorize

Place a small bowl of baking soda or a slice of lemon on a plate inside the microwave to keep it smelling fresh. Alternatively, mix half a cup of baking soda with a few drops of lavender essential oil. Remove before using your microwave again.

For more appliance cleaning tips, take a look at our guides on how to clean a refrigerator and how to clean a dishwasher.

Maintenance Tips to Keep the Microwave Clean

Making microwave care part of your routine prevents grime buildup and keeps your appliance in better shape. Keep your microwave clean longer with these simple habits:

  • Cover food with a lid or paper towel when heating to prevent splatter.

  • Wipe up spills immediately — they’re easier to clean when fresh.

  • Prevent buildup with a light weekly wipe-down.

  • Deep clean monthly.

  • Leave the door open briefly after use to let moisture and food smells dissipate.

When to Call a Technician or Replace Your Microwave

While regular cleaning keeps your microwave in good shape, some signs suggest the need for professional repair or a new microwave altogether:

  • Inconsistent heating.

  • Persistent burning smells even after cleaning.

  • Visible mold, rust, or scorch marks inside your microwave.

  • A faulty or loose door latch, which can cause radiation leakage.

  • Sparks or buzzing

  • Cracks in the turntable or interior walls.

If your microwave shows these signs, unplug it and consult a technician before further use.

The Cleaning Authority is Here to Help

Deep cleaning your microwave and keeping your kitchen spotless takes time and energy that’s hard to find at the best of times, let alone when life gets busy.

The Cleaning Authority is here to keep life simple. We offer convenient one-time deep cleans and recurring services for your house, apartment, or office.* The Cleaning Authority’s experienced cleaning teams use environmentally responsible products to ensure your space is left sparkling, with no harsh chemicals.

Request your free estimate today or call us at (888) 658-0659.

Please check with your local office, as services may vary by location.*

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