Proven: How to Get Mayonnaise Out of Range Hood Fast (2026)

By Tom Bradley · October 18, 2025

Immediate Action (first 5 minutes)

Mayo is stubborn. It contains egg yolks and oil that bind tightly to stainless steel when exposed to ambient kitchen heat. If you just wipe it with a dry paper towel, you'll only smear the grease deeper into the microscopic pores of the metal. Stop. Grab a plastic scraper instead.

I've tested this on my own Broan-NuTone under-cabinet hood after a disastrous tuna salad incident. The very first thing you must do is remove the bulk of the mayonnaise without spreading it. Use a plastic putty knife or an old credit card. Scrape gently from the outside edges toward the center. This keeps the stain contained to a smaller area.

Don't use a sponge yet. Sponges just push the oil around. Once you've lifted the thick glob, spray the remaining residue with a light mist of white vinegar. Let it sit for exactly two minutes. The mild acidity starts breaking down the egg proteins immediately. Wipe it away with a single, clean paper towel and toss it. Now you're ready for the deep clean.

What You'll Need (tools/products)

You can't just use plain dish soap for this. Mayonnaise is a heavy emulsion, meaning the oil and water are forced together with egg lecithin. You need specific degreasers to break that chemical bond. I've spent years cleaning commercial kitchens, and I always keep these exact items under my sink.

Plastic scraper: A 3-inch plastic putty knife (around $3 at any hardware store).
Microfiber cloths: Get 16x16 inch waffle-weave cloths. They trap grease instead of smearing it.
Baking soda: Standard Arm & Hammer box. This provides gentle abrasion.
Soft-bristle toothbrush: An old Colgate or Oral-B brush works perfectly for the mesh filters.
Dish soap: Original blue Dawn. Nothing else cuts grease quite like it.

Choosing the right heavy-duty degreaser makes a massive difference. I'll be honest, this takes elbow grease if you pick the wrong product. Here is a comparison of the three degreasers I test most often on stainless steel range hoods.

Product	Price Range	Best For	My Rating
Dawn Powerwash Dish Spray	$5 - $7	Fresh splatters & light buildup	4.5/5
Zep Heavy-Duty Citrus Degreaser	$12 - $15	Baked-on mayo & thick grease	5/5
Krud Kutter Original	$8 - $11	Sticky residue & filters	4/5

Zep is my absolute favorite for dried mayonnaise. It smells strongly of oranges, but it melts through egg-yolk grease in minutes. This isn't the cheapest option, but it saves you at least twenty minutes of scrubbing.

Step-by-Step Removal

When your landlord inspects next week, or you just want your kitchen to look pristine, follow this exact sequence. I've refined this 6-step process over a decade of cleaning tile and metal surfaces.

Step 1: Remove the aluminum mesh filters

Push the filter latch and slide the metal screens out. Set them aside on a layer of newspaper. You need clear access to the flat stainless steel surface of the hood. If you leave them in, the cleaning solution will drip down into the fan motor.

Step 2: Apply the citrus degreaser

Spray your chosen degreaser (I recommend Zep) directly onto the mayonnaise stain. Coat it thoroughly. Walk away for exactly 7 minutes. Don't rush this step. The solvents need time to penetrate the dried oil layer. If the stain is particularly thick, spray it a second time after 4 minutes.

Step 3: Create a baking soda paste

Mix 3 tablespoons of baking soda with 1 tablespoon of warm water in a small bowl. Stir it until it forms a thick, spreadable paste. Baking soda is mildly alkaline, which perfectly neutralizes the fatty acids in the mayonnaise. It also acts as a micro-abrasive to lift the stain without scratching your hood.

Step 4: Scrub along the grain

Dip your soft-bristle toothbrush into the paste. Scrub the stained area gently. Always scrub in the exact same direction as the stainless steel grain. Scrubbing in circles will leave permanent micro-scratches that trap future grease. You'll see the paste turn slightly yellow as it pulls the egg yolk out of the metal pores.

Step 5: Wipe and rinse

Take a damp 16x16 microfiber cloth and wipe away the paste. Rinse the cloth in hot water (around 140°F) and wipe the area again. Repeat this until the surface feels completely squeaky clean. If your finger drags or feels slick, there is still oil left. Dry the hood immediately with a separate, dry microfiber cloth to prevent water spots.

Step 6: Deep clean the filters

Fill your kitchen sink with 2 gallons of boiling water (212°F). Add half a cup of baking soda and a generous squirt of blue Dawn dish soap. Submerge the aluminum filters completely. Let them soak for 15 minutes. The hot water melts the trapped grease, while the soap suspends it. Scrub the mesh lightly with your toothbrush, rinse with warm tap water, and let them air dry on a towel.

Alternative Methods

Sometimes the standard degreaser method doesn't quite cut it. If you're dealing with a massive mess after hosting a dinner party where you made homemade aioli, you might need heavier artillery. Here are two backup methods I rely on when the going gets tough.

The Ammonia Bag Soak (For Filters Only)

This method is strictly for the removable aluminum mesh filters, never for the stainless steel hood itself. Place the greasy filters inside a heavy-duty black trash bag. Pour exactly one-quarter cup of household ammonia into the bag. Tie it shut tightly. Leave it outside or in a well-ventilated garage overnight. The ammonia fumes will literally dissolve the baked-on mayonnaise and grease without any scrubbing. The next morning, open the bag outdoors, rinse the filters with a garden hose, and they will look brand new. Wear gloves and avoid breathing the fumes.

Steam Cleaning (For the Hood Surface)

If you have a Dupray Neat steam cleaner, this is a game-changer. Fill the tank with distilled water and let it heat up to 275°F. Attach the triangular brush tool and wrap it in a clean cotton towel. Hold the steam nozzle about two inches from the mayonnaise stain. The pressurized, high-heat steam instantly melts the egg and oil emulsion. Wipe the liquefied grease away with a dry cloth. This method uses zero chemicals, making it perfect if you have kids who track mud everywhere and you're trying to avoid harsh indoor sprays.

Prevention Tips

Cleaning dried mayonnaise is a chore you don't want to repeat. I've found that a few simple habits keep your range hood looking flawless for years.

Use a splatter screen: Buy a 13-inch stainless steel splatter screen (usually around $12 on Amazon). Place it over your frying pan whenever you're cooking with heavy oils or making messy sauces. It catches the mayo and grease before it ever reaches the hood.
Wipe it down weekly: Keep a bottle of Dawn Powerwash under the sink. Every Sunday night, spray the bottom of the hood and wipe it with a paper towel. It takes 45 seconds. This prevents the invisible layer of cooking oil from building up and acting like glue for future splatters.
Run the fan early: Turn your range hood fan on five minutes before you start cooking. This creates a strong upward draft that pulls airborne grease particles into the filters rather than letting them settle on the flat metal surfaces.
Apply a stainless steel polish: Once a month, buff the hood with Weiman Stainless Steel Cleaner. This leaves a microscopic protective barrier that makes future mayonnaise splatters slide right off when you wipe them.

FAQ

Can I put my range hood filters in the dishwasher?

You can, but I highly recommend against it. The harsh detergents and high heat in a dishwasher will often oxidize the aluminum mesh, leaving it dull, gray, and permanently stained. Hand washing them in the sink with hot water, baking soda, and Dawn dish soap takes only 15 minutes and keeps the metal shiny and intact.

Why does mayonnaise leave a yellow stain on stainless steel?

The yellow tint comes directly from the egg yolks used to emulsify the oil. When those yolks are exposed to the ambient heat rising from your stove, the proteins coagulate and bind tightly to the microscopic grooves in the stainless steel. You need an alkaline cleaner like baking soda or a strong solvent to break down those specific proteins.

Will baking soda scratch my stainless steel range hood?

Baking soda is a very mild abrasive and will not scratch high-quality stainless steel if used correctly. The key is to use a soft-bristle brush or a microfiber cloth, and always scrub in the exact direction of the metal's natural grain. Never use steel wool or the rough green side of a sponge with baking soda, as those will definitely leave permanent scratch marks.

How often should I clean the inside of the range hood?

You should wipe down the exterior and the bottom surface every single week to prevent sticky buildup. However, the deep interior and the fan blades only need a thorough degreasing every three to six months, depending on how often you cook with heavy oils. If you notice the fan sounding louder or vibrating, it's time to open it up and clean the blower wheel.