How to Clean and Maintain Your LG Microwave

LG microwaves are designed to be cleaned from the inside out, starting with the removable turntable and working toward the walls and ceiling

Your LG microwave accumulates food splatters, steam residue, and grease every time you heat something. The good news is that LG models follow a straightforward cleaning pattern because most of the mess collects on surfaces you can reach and remove. The turntable comes out entirely, the interior walls wipe down with a damp cloth, and the vents need attention roughly once a month to prevent odor buildup.

The reason this matters for your refrigerator is that a clean microwave prevents odors from traveling into your fridge when they sit side by side or when you open both appliances in quick succession. Microwave steam and cooking smells can transfer to your stored food, especially dairy, leftovers, and anything in open containers. A regular cleaning schedule keeps both appliances working better and your food tasting fresher.

Key Takeaways

• Remove the LG turntable after every few uses and wash it with warm soapy water, then dry it completely before replacing it.
• Wipe the interior walls and ceiling with a damp microfiber cloth or soft sponge at least once a week to prevent baked-on splatters.
• Heat a bowl of water with lemon or vinegar for three to five minutes to loosen stubborn debris and freshen the air inside the cavity.
• Clean the exterior vents and the grease filter (if your model has one) monthly to stop odors from spreading to nearby food storage areas.
• Check the door seal and interior light for debris, and wipe them gently with a soft cloth to maintain visibility and prevent seal degradation.

Removing and Washing the LG Turntable

The turntable is the easiest part to clean because it comes out completely. Open the microwave door, lift the turntable straight up and out of the center post, and set it aside. If it feels stuck, wiggle it gently side to side rather than pulling hard—the post is fragile and can crack if forced.

Wash the turntable in your sink with warm soapy water and a soft sponge or cloth. Pay attention to the underside and the rim, where grease and food particles collect. Rinse thoroughly and dry it completely with a lint-free cloth before putting it back. A wet turntable can cause electrical problems and will drip onto the interior floor when you turn the microwave on.

Replace the turntable by aligning the center hole with the post and lowering it straight down until it sits flat. It should spin freely when you turn it by hand. If it catches or wobbles, lift it and try again—it needs to be seated properly or it will make noise during cooking.

Wiping Down the Interior Walls and Ceiling

The interior walls and ceiling of your LG microwave collect the most visible splatters. Use a damp microfiber cloth or soft sponge—never abrasive scrubbers or paper towels that shed fibers. Microfiber is ideal because it traps grease without scratching the enamel coating inside the cavity.

Start at the top and work downward so drips fall onto the floor rather than onto already-cleaned surfaces. For stuck-on food, dampen the cloth with warm water and let it sit against the spot for 30 seconds to soften the debris. Wipe gently in circular motions. If something still won't budge, use the steam method described in the next section rather than scrubbing harder.

Pay special attention to the corners where the walls meet the floor and ceiling. Moisture and food particles settle there and can develop odors that transfer to your refrigerator. Wipe these areas thoroughly and make sure they are completely dry before closing the door.

Using Steam to Loosen Stubborn Splatters

The easiest way to clean baked-on food inside an LG microwave is to use steam. Fill a microwave-safe bowl with one cup of water and add the juice of half a lemon or two tablespoons of white vinegar. Place the bowl in the center of the microwave on the turntable.

Close the door and run the microwave on high power for three to five minutes. The steam will circulate inside the cavity and soften dried food, grease, and splatters. When the time is up, open the door carefully—the interior will be hot and steamy. Let it cool for one to two minutes so you do not burn yourself.

Use your damp cloth to wipe down all surfaces while they are still warm and soft. The debris will come away easily. This method also freshens the air inside the microwave and reduces odors that can seep into your refrigerator. If your LG model has a vent that opens into the fridge area, this steam cleaning is especially important.

Cleaning the Exterior Vents and Grease Filter

Many LG microwaves, especially over-the-range models, have vents on the exterior that pull steam and cooking odors out of the kitchen. These vents can become clogged with grease and dust, which forces odors back into the microwave cavity and toward your refrigerator. Check your model's manual to locate the vents—they are usually on the top or back of the unit.

Use a soft brush or an old toothbrush to gently brush away dust and debris from the exterior vent openings. If your LG has a removable grease filter, slide it out according to your manual's instructions. Wash it in warm soapy water, scrubbing both sides gently. Rinse and dry completely before sliding it back in. A clogged filter reduces airflow and allows odors to linger near your food storage areas.

Clean the vents and filter monthly, or more often if you cook frequently or use high-heat settings. This maintenance step prevents the microwave from becoming a source of smell that transfers to your refrigerator and stored food.

Inspecting the Door Seal and Interior Light

The rubber door seal around the edge of your LG microwave can trap food particles, grease, and moisture. Over time, this buildup can cause the seal to degrade or allow odors to escape into the surrounding air. Open the door and look at the seal all the way around. If you see debris, dampen a soft cloth and wipe the seal gently, working into the groove where it meets the door frame.

The interior light sits in a small fixture, usually on the top or side wall of the cavity. Dust and grease can accumulate on the light cover or bulb, making it harder to see inside and trapping odors. Wipe the light cover gently with a damp cloth. If the bulb itself is dirty, turn off and unplug the microwave, wait for it to cool, then carefully remove the bulb and wipe it with a dry cloth before reinstalling it. Check your manual for the correct bulb type if you need to replace it.

Preventing Odors That Spread to Your Refrigerator

A clean microwave is the first step, but preventing odors from forming in the first place keeps your refrigerator fresher too. Always cover food before microwaving it—use a microwave-safe lid, plate, or paper towel to catch splatters. This reduces the amount of debris that sticks to the walls and ceiling.

Wipe up spills immediately after they cool slightly. Fresh splatters are much easier to clean than dried ones, and they do not have time to harden or develop odors. Keep a damp cloth or paper towel near your microwave so you can do a quick wipe-down after each use.

If your LG microwave sits directly above or next to your refrigerator, pay extra attention to the vents and seals. Heat and steam from the microwave can rise into the fridge's cooling system, making it work harder and allowing odors to travel between the two appliances. A monthly deep clean of the microwave vents and filter is especially important in this setup.

Frequently Asked Questions

Can I use bleach or harsh chemicals to clean the inside of my LG microwave?

No. Bleach and harsh chemicals can damage the enamel coating inside the cavity and leave residue that transfers to your food. Stick to warm soapy water, vinegar, or lemon juice. These are safe, effective, and will not harm the microwave or your food.

How often should I clean my LG microwave if I use it every day?

Wipe the interior walls and turntable at least once a week. If you cook messy foods like sauces or soups frequently, do a quick wipe-down after each use. Clean the vents and filter monthly. This schedule keeps odors from building up and prevents them from spreading to your refrigerator.

What should I do if my LG microwave smells bad even after cleaning?

Run the steam-and-lemon method two or three times in a row to deep-clean the cavity. Leave the door open for an hour afterward to let it air out. If the smell persists, check the vents and grease filter for clogs. Stubborn odors often come from a blocked vent that traps old cooking smells inside the unit.

Is it safe to put the LG turntable in the dishwasher?

Check your manual first—some LG turntables are dishwasher-safe and some are not. If yours is not, hand-wash it in warm soapy water. Always dry it completely before replacing it in the microwave, regardless of how you wash it.

Can I clean the interior light bulb while the microwave is plugged in?

No. Always unplug the microwave before touching the light bulb or any internal electrical components. Wait for the unit to cool completely, then remove and wipe the bulb with a dry cloth. Plug it back in only after you have reinstalled the bulb and closed the door.