Proven: How to Get Feces Out of Indoor Grills in 2026

By James Kowalski · November 15, 2025

Immediate Action (first 5 minutes)

When your cat decides the cooling plates of your Ninja Foodi Smart XL Grill make a perfect litter box, panic sets in. I've been there. My tabby, Barnaby, did exactly this last winter after I left the lid open. The absolute worst thing you can do is turn the appliance on. Burning bio-matter creates toxic, foul-smelling smoke that will permeate your kitchen drywall. Don't even think about it.

First, unplug the unit immediately. Safety is your priority. Next, grab a pair of thick nitrile gloves and a plastic scraper. I use the OXO Good Grips silicone scraper because it won't gouge the non-stick ceramic coating. Gently lift the solid waste. Drop it into a sealed plastic bag.

If the mess is fresh, it wipes up easily. Dried accidents require more patience. Blot any residual moisture with heavy-duty paper towels. Scott Shop Towels work best here since they don't disintegrate when wet. You want to remove as much physical matter as possible before applying any liquids. This keeps the stain from spreading into the drip tray or heating coils.

What You'll Need (tools/products)

You can't just use standard dish soap for this. Feces contains proteins and bacteria that require specific chemical breakdowns. I've tested dozens of cleaners over my 12 years in stain removal. Enzymatic cleaners are non-negotiable for biological waste. Standard degreasers just smear the bacteria around.

Here is my exact toolkit for this nightmare scenario:

Enzymatic Cleaner: Nature's Miracle Stain & Odor Remover ($14.99 for 32oz). This breaks down uric acid and proteins.
Heavy-Duty Gloves: Venom Steel Nitrile Gloves (5-mil thickness). Latex tears too easily on grill grates.
Scrub Brush: Fuller Brush 17042 Pot & Pan Brush. The stiff bristles reach into the grill ridges without scratching.
Microfiber Cloths: Zwipes Auto Detailing Cloths (pack of 12). They trap bacteria better than cotton.
Food-Safe Sanitizer: Star San HB ($22.00 for 32oz). This is a brewer's sanitizer that leaves no toxic residue.

Product Type	Brand Recommendation	Price Range	Best For
Enzymatic Spray	Nature's Miracle	$12 - $18	Breaking down solid proteins
Steam Cleaner	Dupray Neat	$130 - $150	Sanitizing deep crevices
Ceramic Paste	Bar Keepers Friend	$5 - $8	Removing baked-on residue

Step-by-Step Removal (4-7 steps)

This isn't the cheapest option, but replacing a $250 indoor grill is worse. I'll be honest, this takes elbow grease. Follow these steps exactly to salvage your appliance.

Step 1: Complete Disassembly

Take everything apart. Remove the grill plates, the drip tray, and the splatter shield. If you own a George Foreman Removable Plate Grill, pop the plates off and set them in the sink. Check the manufacturer's manual to see if the plates are dishwasher safe. Even if they are, don't put bio-waste in your dishwasher. Hand wash only for this specific mess.

Step 2: The Enzymatic Soak

Fill your sink with warm water. The temperature must be between 105°F and 115°F. Water hotter than 120°F will kill the active enzymes in your cleaner. Submerge the grill plates and drip tray completely. Spray a generous layer of Nature's Miracle over the submerged parts. Let them soak for exactly 20 minutes. This gives the bacteria time to digest the organic waste.

Step 3: Agitation and Scrubbing

Grab your Fuller Brush pot brush. Scrub the plates in a circular motion, paying special attention to the deep ridges. Feces loves to hide in the lowest points of the grill grates. If you encounter stubborn, dried patches, apply a small amount of Bar Keepers Friend Soft Cleanser. Scrub gently to avoid stripping the non-stick coating. Rinse the plates with hot tap water.

Step 4: Cleaning the Main Unit

Never submerge the main heating unit. Spray your enzymatic cleaner onto a microfiber cloth until it is damp, not dripping. Wipe down the interior cavity of the grill. Be incredibly careful around the exposed heating coils. If waste got onto the coils, use a dry, soft-bristled toothbrush to gently flick it off into a trash can.

Step 5: Sanitization and Drying

Mix 1 ounce of Star San HB with 5 gallons of cool water in a clean bucket. Dip a fresh microfiber cloth into the solution and wipe down all the grill plates and the interior cavity. Star San is a no-rinse sanitizer that food professionals use. It kills 99.9% of remaining bacteria on contact. Let the parts air dry completely on a clean dish rack before reassembling.

Alternative Methods (2-3 backup methods)

Sometimes the standard soak doesn't cut it. If you are dealing with a severely baked-on mess or lingering odors, try these backup techniques. I've used all three in my professional cleaning career.

Method 1: High-Heat Steam Cleaning

If you have a Dupray Neat Steam Cleaner, this is your best backup. Fill the tank with distilled water and let it heat up to 275°F. Attach the brass utility brush nozzle. Run the steam directly over the grill ridges for 10 seconds per section. The pressurized steam blasts biological matter out of the microscopic pores of the metal. Wipe away the loosened grime immediately with a thick towel.

Method 2: Hydrogen Peroxide Paste

This works wonders on ceramic-coated plates that have absorbed staining. Mix 3 tablespoons of baking soda with enough 3% hydrogen peroxide to form a thick paste. Spread this paste over the stained areas of the grill plate. Let it sit for 45 minutes. The peroxide acts as a mild, food-safe bleach that lifts organic pigments without damaging the ceramic layer. Scrub and rinse thoroughly.

Method 3: White Vinegar Odor Neutralization

If the physical waste is gone but the smell remains, vinegar is your friend. Fill a small, oven-safe glass bowl with 1 cup of white distilled vinegar. Place the bowl inside the cold indoor grill. Close the lid and leave it unplugged for 12 hours. The acetic acid in the vinegar will absorb and neutralize the volatile organic compounds causing the odor. Discard the vinegar and wipe the interior dry.

Prevention Tips

Dealing with this once is enough. If you have pets who track mud everywhere or a curious toddler, you need a defense strategy. Here is how I keep my kitchen appliances pristine.

Use a Fitted Appliance Cover: Buy a neoprene cover specifically sized for your grill model. They cost about $15-25 on Amazon and create a physical barrier against pet accidents. I use the Grillman cover for my Ninja Foodi.
Deploy Motion-Activated Deterrents: The PetSafe SSSCAT Spray ($35-45) uses a harmless burst of compressed air when it detects motion. Place it on the counter next to your grill. It trains cats and dogs to avoid the area entirely within three days.
Store in a Closed Cabinet: If you don't use your indoor grill daily, put it away. I know it's heavy and annoying to move. But keeping it inside a lower cabinet with a child-proof latch eliminates 100% of accidental bio-hazards.
Never Leave the Lid Open: Cats are drawn to the residual warmth of cooling grill plates. Make it a strict household rule to close the lid immediately after cooking. This simple habit saves you hours of disgusting cleanup.

FAQ

Can I just turn the grill on to burn it off?

Absolutely not. Burning biological waste releases toxic fumes and particulate matter that will coat your kitchen walls and lungs. The extreme heat will also bake the proteins into the non-stick ceramic coating, permanently ruining the grill plates. Always clean bio-matter manually first.

Will the smell ever go away?

Yes, but only if you use an enzymatic cleaner to break down the uric acid and proteins. Standard dish soap just masks the odor temporarily, which returns when the grill heats up. I recommend leaving the grill disassembled in a well-ventilated area for 24 hours after cleaning.

Is it safe to cook on after cleaning?

It is completely safe once you have sanitized the surfaces and run a test heating cycle. After the manual clean, wipe the plates with a food-safe sanitizer and let them dry. Then, run the grill empty at 400°F for 15 minutes to burn off any residual cleaning agents.

What if it got into the heating element?

This is a tricky situation that requires extreme care to avoid electrical damage. Unplug the unit and use a slightly damp microfiber cloth wrapped around a chopstick to gently wipe the coils. Never spray liquids directly onto the heating element, and let it dry for 48 hours before plugging it back in.