Clean your Ninja air fryer oven while it's unplugged and cool, using warm soapy water and a soft cloth for most parts, and a damp cloth for the heating element and interior walls

The Ninja air fryer oven has removable parts that come apart easily, which makes cleaning straightforward if you do it regularly. Most of the basket, tray, and crumb tray can go in the dishwasher on the top rack, though hand washing with warm soapy water works just as well and lasts longer. The heating element and interior walls stay in the unit and need only a damp cloth—never soak them or spray them directly.

The key to keeping your Ninja running well is cleaning it after every use, before grease and food particles harden. A five-minute wipe-down after cooking prevents buildup that becomes difficult to remove later and keeps the oven heating evenly.

Key Takeaways

  • Always unplug the oven and let it cool for at least 30 minutes before you touch any interior parts.
  • The basket, cooking tray, and crumb tray are dishwasher-safe on the top rack, or you can wash them by hand with warm soapy water.
  • Wipe the heating element and interior walls with a damp cloth only—never spray water directly into the oven or soak these parts.
  • Remove and empty the crumb tray after every use to prevent grease from pooling and smoking during your next cook.
  • For stuck-on food, let the oven cool, then soak the removable parts in warm soapy water for 15 to 20 minutes before scrubbing gently.

Unplug and cool the oven before you start

Always unplug your Ninja air fryer oven from the wall outlet before you clean any part of it. This is the single most important safety step. Wait at least 30 minutes after cooking stops before you open the door and reach inside—the heating element and interior walls stay hot long enough to burn your hands.

If you are in a hurry, you can remove the basket and tray while the oven is still warm (but unplugged), as long as you use an oven mitt or let them cool on the counter. Never reach toward the heating element or touch the interior walls until they are cool enough to hold your bare hand against for five seconds.

Remove and rinse the basket, tray, and crumb tray

The basket (the perforated metal cage where food sits), the cooking tray (the flat metal sheet underneath), and the crumb tray (the shallow drawer at the bottom) all come out of the oven. Pull them straight out toward you—they slide on rails and do not need to be twisted or forced.

Rinse all three under warm running water to loosen crumbs and grease. If you see stuck-on food, fill your sink with warm water and a squirt of dish soap, then soak the parts for 15 to 20 minutes. After soaking, use a soft sponge or cloth to scrub gently—avoid steel wool or abrasive scrubbers, which can scratch the nonstick coating. Rinse again under warm water and set them on a clean towel to air dry, or dry them by hand with a cloth.

The crumb tray collects oil and food particles that fall through the basket. Empty it into the trash after every use, even if it looks mostly clean. Grease left in the tray can smoke or catch fire during your next cook if the oven gets hot enough.

Wipe the heating element and interior walls

The heating element is the coil or rod at the top of the oven interior. The interior walls are the sides and back of the cooking chamber. Both stay in the unit and should never be soaked or sprayed with water.

Dampen a soft cloth or sponge with warm water—it should be wet but not dripping. Gently wipe the heating element from side to side, being careful not to press hard or bend it. Then wipe the interior walls and the back of the oven. If you see stubborn spots, dampen the cloth again and let it sit against the spot for a few seconds to soften the residue, then wipe gently.

Never spray water directly into the oven, and never use a cloth so wet that water drips inside. Water that pools in the bottom of the oven can damage the heating system or create rust over time.

Clean the exterior and glass door

The outside of your Ninja oven and the glass door window can be wiped with a damp cloth and dried with a dry cloth. If the glass is steamed or has grease spots, a little white vinegar on the cloth helps cut through the film. Wipe in one direction rather than in circles, which can leave streaks.

The exterior casing and control panel should be wiped with a cloth that is barely damp—not wet. Excess water near the buttons or vents can seep into the electrical components and cause problems. If you spill liquid on the exterior, unplug the oven when ready and let it dry for at least an hour before plugging it back in.

Dishwasher versus hand washing

The basket, tray, and crumb tray are all dishwasher-safe on the top rack. The top rack is cooler than the bottom, which protects the nonstick coating from high heat. If you use the dishwasher, place them on the top rack and use a normal wash cycle—no need for a special setting.

Hand washing with warm soapy water and a soft sponge actually extends the life of the nonstick coating because you have more control over the temperature and scrubbing pressure. If you hand wash, dry the parts right away instead of letting them air dry, which can leave water spots.

What to do about stubborn buildup

If grease or food has hardened inside the oven and a damp cloth will not remove it, let the oven cool completely, then soak a cloth in warm water and drape it over the spot for five to ten minutes. The moisture softens the buildup so you can wipe it away without scrubbing hard.

For the removable parts, the same soak-and-wipe method works. If a spot still will not budge after soaking, use a soft plastic scraper or an old credit card held at a low angle to gently lift the residue. Avoid metal scrapers and stiff brushes, which scratch the nonstick surface and shorten the life of the parts.

Never use oven cleaner, bleach, or harsh chemicals inside a Ninja air fryer oven. These can damage the nonstick coating, corrode the heating element, and leave toxic residue that contaminates your food.

How often to clean and what to watch for

Empty the crumb tray and wipe the interior with a damp cloth after every use. Remove and wash the basket and tray at least once a week, or more often if you cook fatty foods like chicken wings or bacon. A quick weekly cleaning prevents grease from building up and smoking during future cooks.

If you notice smoke coming from the oven during cooking, unplug it when ready and let it cool. Check the crumb tray for pooled grease and the heating element for food splatter. Wipe both clean before you use the oven again. Smoke usually means either the crumb tray is full or the heating element has debris on it.

If the nonstick coating starts to peel or flake, stop using the affected part and contact Ninja customer support about a replacement. Peeling coating can end up in your food, and the bare metal underneath will rust and corrode.

Frequently Asked Questions

Can I put the basket and tray in the dishwasher?

Yes, both the basket and cooking tray are dishwasher-safe on the top rack. The top rack is cooler and protects the nonstick coating better than the bottom rack. Hand washing with warm soapy water also works and may extend the life of the coating.

What if water gets inside the oven during cleaning?

If water pools in the bottom of the oven, unplug it when ready and tilt it slightly to let the water drain out. Let the oven sit unplugged for at least an hour to dry completely before you plug it back in. If water drips into the vents or near the electrical components, wait several hours or overnight before using it again.

Is it safe to use vinegar or baking soda inside the oven?

Vinegar on a damp cloth is safe for the glass door and exterior. Avoid putting vinegar or baking soda directly inside the oven or on the heating element, as the residue can affect the taste of your food and may damage the nonstick coating over time.

Why is my oven smoking even after I clean it?

Smoke usually comes from grease in the crumb tray or food splatter on the heating element. Empty the crumb tray and wipe the heating element with a damp cloth, then let the oven cool and dry completely before using it again. If smoke continues, the heating element may have buildup that needs soaking—let a damp cloth sit against it for several minutes, then wipe gently.

How do I clean the heating element safely?

Always unplug the oven first and let it cool for at least 30 minutes. Dampen a soft cloth with warm water and gently wipe the heating element from side to side. Never spray water directly on it, soak it, or scrub hard. If food is stuck on, let a damp cloth sit against the spot for a few seconds to soften it, then wipe gently.