How to Clean a Stainless Steel Microwave Inside and Out: A Step-by-Step Guide with Bar Keeper's Friend

A stainless steel microwave adds a sleek look to any kitchen, but keeping it clean—both inside and out—can feel like a chore. Food splatters cake onto the interior walls, and the exterior quickly shows fingerprints, smudges, and grease splashes. The wrong cleaning method can leave streaks or even scratch the finish. With the right approach and products, you can restore your microwave to like-new condition without a lot of elbow grease.

Bar Keeper's Friend offers effective solutions for both the interior and exterior of your microwave. For the stainless steel surfaces, their dedicated cleaner and polish handles streaks and tarnish. For tough, baked-on food inside, their classic Cleanser works wonders without harsh chemicals. This guide walks you through every step, from safety prep to final polish, so you can remove grease from your microwave and keep it looking spotless.

What You'll Need Before You Start

Gather your tools and products to save time. For the interior, you'll need a non-abrasive sponge or microfiber cloth, warm water, and a gentle cleaner. For the exterior stainless steel, choose a cleaner specifically made for the metal. Bar Keeper's Friend Stainless Steel Cleaner & Polish is ideal for removing fingerprints and restoring the grain. A soft, lint-free microfiber cloth is essential for buffing without scratching.

If the microwave interior is stainless steel, use Bar Keeper's Friend Soft Cleanser—it's gentle enough for delicate surfaces. For painted or enamel interiors, stick to mild dish soap and water to avoid damaging the coating. You'll also need a bowl of water for steaming, a toothbrush for corners, and a dry cloth for final buffing. Unplug the microwave before cleaning for safety.

• Always check your microwave's manual to confirm the interior material before choosing a cleaner.
• Avoid abrasive pads like steel wool—they can scratch both interior and exterior surfaces.

Cleaning the Interior: Removing Grease and Food Splatters

Start by removing the glass turntable and any roller rings. Wash these separately with warm soapy water. To loosen baked-on food inside, place a microwave-safe bowl filled with water and a few lemon slices or a tablespoon of vinegar. Microwave on high for 3–5 minutes until steam coats the walls. Let it sit for 2 minutes, then wipe the interior with a damp sponge—most grime will come off easily.

For stubborn spots or dried-on grease, make a paste with Bar Keeper's Friend Cleanser and a little water. Apply it to the affected areas with a soft sponge, let it sit for one minute, then scrub gently. Rinse thoroughly with a damp cloth to remove all residue. Dry the interior completely with a microfiber towel to prevent water spots. Reinstall the turntable and ring once dry.

• Steaming is the safest and easiest way to clean a stainless steel microwave interior without scratching.
• If your interior is stainless steel, substitute the Cleanser with Bar Keeper's Friend Soft Cleanser for a non-scratch clean.

Polishing the Exterior Stainless Steel for a Streak-Free Shine

The exterior of your microwave collects fingerprints, grease splatters from cooking, and dust. Start by wiping the surface with a damp microfiber cloth to remove loose debris. Then apply Bar Keeper's Friend Stainless Steel Cleaner & Polish. Shake the bottle well, spray a small amount onto a soft cloth (not directly onto the microwave), and wipe in the direction of the metal grain. This prevents streaks and ensures an even finish.

Buff the surface with a clean, dry microfiber cloth to bring out the shine. For stubborn smudges or dried-on grease, apply a little extra cleaner and let it sit for 30 seconds before wiping. The polish also creates a protective layer that helps repel fingerprints, so you won't need to clean as often. Use this step weekly to keep your stainless steel appliance cleaner looking like new.

• Always wipe with the grain of the stainless steel, not in circles, to avoid a hazy appearance.
• Test the cleaner on a small hidden area first, especially if your microwave has a brushed or matte finish.

Quick Microwave Cleaning Tips for Daily Maintenance

Make it a habit to wipe up splatters right after each use. A quick pass with a damp paper towel prevents food from baking on. Use a microwave cover to reduce messes—this single step cuts cleaning time in half. For odors, place a bowl of water with baking soda inside and run the microwave for a minute; the steam neutralizes smells.

For the exterior, keep a microfiber cloth nearby and do a quick buff when you notice fingerprints. A monthly deep clean with Bar Keeper's Friend Stainless Steel Cleaner & Polish will keep the metal looking pristine. Don't forget to clean the control panel and door edges with a slightly damp cloth—avoid getting moisture inside the vents.

• Store a microwave cover in an easy-to-reach drawer so you'll actually use it.
• Never spray liquid directly onto control panels—apply to cloth first.

Cleaning a stainless steel microwave doesn't have to be a daunting task. By steaming the interior to loosen grime, using Bar Keeper's Friend Cleanser for tough spots, and finishing with the Stainless Steel Cleaner & Polish on the outside, you can achieve a streak-free shine with minimal effort. Consistent daily wipes and weekly polishings will keep your appliance looking its best for years.