Clean your Ninja air fryer after every use, while it's still warm but unplugged

The easiest time to clean a Ninja air fryer is right after you finish cooking, when food residue hasn't hardened. Unplug the unit first, then let it cool for about 3 to 5 minutes—warm enough that stuck-on food wipes away easily, cool enough that you won't burn your hands. Most Ninja models have removable baskets and trays that come out completely, which means you can clean them separately from the heating element.

The basket and crisper plate (the flat tray that sits inside) are the parts that touch food directly. Both go into the sink with hot soapy water and a soft sponge or cloth. Scrub gently to avoid scratching the non-stick coating. Rinse thoroughly and dry before putting them back. The main housing—the part that stays on your counter—never goes in water. Wipe the inside walls and heating element area with a damp cloth or paper towel while the unit is unplugged and cool.

Key Takeaways

  • Always unplug your Ninja air fryer and let it cool for a few minutes before cleaning, but clean while it's still warm so food doesn't stick.
  • The removable basket and crisper plate are dishwasher-safe on most Ninja models, but hand-washing with a soft sponge keeps the non-stick coating in better condition.
  • Never submerge the main housing unit or spray water directly into the heating element area—use only a damp cloth on the interior walls.
  • Built-up grease and food particles reduce air circulation and cooking performance, so a quick wipe-down after each use prevents the need for deep cleaning later.

Removing and washing the basket and crisper plate

Open your Ninja air fryer and pull out the basket by the handle. Most models have a basket that slides straight out, and underneath it sits the crisper plate—a flat metal tray with small holes or ridges. Lift that out too. Both pieces have a non-stick coating that can scratch if you use abrasive scrubbers, so use a soft sponge, cloth, or soft-bristled brush.

Fill your sink with hot water and a squirt of dish soap. Soak the basket and plate for a minute or two if food is stuck on, then scrub gently on both sides. Pay attention to the underside of the basket, where grease collects. Rinse both pieces under running water until the water runs clear, then dry them completely with a clean cloth or paper towel before putting them back in the unit. Moisture left inside can drip onto the heating element when you turn the fryer on next.

Cleaning the interior walls and heating element

With the basket and crisper plate removed, you can see the inside of the main unit. The heating element sits at the top—a coil or flat surface that gets very hot. Never spray water directly on it or use a wet cloth on it. Instead, dampen a cloth or paper towel with water, wring it out so it's barely damp, and wipe the interior walls and the area around the heating element. This removes grease splatter and loose crumbs.

If you see stubborn buildup on the heating element itself, let the unit cool completely, then use a dry cloth or soft brush to gently brush away loose debris. Do not scrape or use any liquid on the heating element. If grease has baked on hard, it's better to leave it than to risk damaging the element. A light wipe-down after each use prevents heavy buildup from forming in the first place.

Dealing with grease buildup and stuck-on food

If you skip cleaning for a few uses, grease and food particles harden inside the basket and on the interior walls. The basket still goes into hot soapy water, but you may need to soak it for 5 to 10 minutes to soften the buildup. A soft sponge or cloth should still be your first choice, but if food is truly stuck, you can use a soft-bristled brush or the non-abrasive side of a sponge.

For the interior walls, a damp cloth usually handles light grease. If buildup is heavy, dampen the cloth with a mixture of equal parts water and white vinegar. Wipe the walls and let the vinegar solution sit for a minute, then wipe again with a clean damp cloth. This cuts through grease without chemicals. Dry the interior thoroughly before plugging the unit back in. Never use oven cleaner, bleach, or harsh scrubbing pads—these damage the non-stick coating and can leave residue that affects food taste.

Checking your Ninja model's specific instructions

Ninja makes several air fryer models, and while the basic cleaning steps are the same, some have features that need different care. The Ninja Air Fryer XL, for example, has a larger basket but the same removable parts. The Ninja Foodi (which combines air frying with other cooking methods) has additional trays and accessories that each have their own cleaning needs.

Check the manual that came with your unit or look it up on Ninja's website by your model number—usually printed on a sticker on the bottom or back of the unit. The manual tells you which parts are dishwasher-safe (many baskets and plates are, though hand-washing extends their life) and whether your specific model has any parts you should never submerge. It also clarifies whether the heating element is exposed or covered, which affects how you wipe the interior.

How often to do a deep clean

A quick wipe-down after every use keeps your Ninja air fryer in good working order. But every month or two, depending on how often you use it, do a more thorough cleaning. Remove the basket and crisper plate and soak them in hot soapy water for 10 to 15 minutes, then scrub more thoroughly. Wipe down all interior walls with a damp cloth, paying special attention to corners where grease pools.

If your unit has a removable crumb tray at the bottom (some models do), pull that out and empty it, then wipe it clean. A clean air fryer circulates heat more evenly, cooks food more consistently, and lasts longer. Buildup also traps odors, so regular cleaning keeps your kitchen from smelling like old fried food.

When to call a professional or replace parts

Most cleaning you do yourself. But if the non-stick coating on the basket starts to peel or flake, or if you see rust spots forming, that basket has reached the end of its life and should be replaced. Ninja sells replacement baskets and crisper plates separately—search for your model number on their website or a kitchen supply retailer.

If the heating element stops working evenly, or if you notice the unit is no longer heating to the right temperature even after a thorough cleaning, the element itself may have failed. This is not something you can fix at home. Contact Ninja's customer service with your model number and serial number (also on the bottom sticker) to discuss repair or replacement options. Most units come with a one-year warranty that covers heating element failure.

Frequently Asked Questions

Can I put my Ninja air fryer basket in the dishwasher?

Most Ninja baskets and crisper plates are dishwasher-safe on the top rack, but hand-washing with a soft sponge is gentler on the non-stick coating and makes it last longer. If you do use the dishwasher, skip the heated dry cycle and air-dry instead. Check your manual to confirm your specific model's parts are dishwasher-safe.

What should I do if food is stuck and won't come off?

Soak the basket in hot soapy water for 10 to 15 minutes to soften the stuck food, then scrub gently with a soft sponge. If it still won't budge, soak for another 5 minutes. Never use a metal scraper or abrasive pad—these scratch the non-stick surface. A soft-bristled brush or the non-abrasive side of a sponge is safe to use.

Is it okay to spray water inside the air fryer to clean it?

No. Never spray water directly into the unit or on the heating element. Water can damage the electrical components and create a safety hazard. Use only a damp cloth that you've wrung out so it's barely wet, and wipe the interior walls and around the heating element. The basket and crisper plate can go in water, but the main housing unit should never be submerged or sprayed.

Why does my air fryer smell like old oil even after I clean it?

Grease buildup inside the walls or on the heating element holds onto odors. Do a deep clean by soaking the basket longer, wiping all interior walls with a damp cloth, and using a vinegar-and-water solution on stubborn grease. Make sure to dry everything thoroughly. If the smell persists after a thorough cleaning, it may be coming from the heating element itself—in that case, run the unit empty at a high temperature for a few minutes to burn off old residue.

Do I need to clean my air fryer if I only cooked vegetables?

Yes. Even vegetables release moisture and small particles that can stick to the basket and interior. A quick wipe-down after every use, regardless of what you cooked, keeps the unit clean and prevents buildup. It only takes a minute or two and extends the life of your air fryer.