Can You Put Metal in an Air Fryer? What’s Safe to Use

Yes. You can put metal in an air fryer, as long as it’s oven-safe, it fits without touching the heating element, and it doesn’t block the airflow the machine needs to cook. Stainless steel bowls, aluminum cake pans, metal skewers and properly placed aluminum foil are all fine in most models.

The basket you’re already cooking in is metal.

The real risks are different from what people expect. Nothing sparks. What goes wrong is soggy food from choked airflow, loose foil flying into the element, scratched nonstick coating, or a pan so tall the food hits the heat and burns.

Below I’ll go through which metals work, how foil should be handled, when acidic foods matter, and the handful of cases where the answer flips to no.

Why metal doesn’t cause a problem in an air fryer

An air fryer is a small convection oven. A heating element sits at the top, a fan pushes that hot air down and around the food, and the perforated basket lets it circulate underneath. There’s no microwave radiation involved, so metal doesn’t arc or spark the way it can in a microwave.

That’s the whole mechanical reason metal is fine. If a pan can go in your regular oven at 400°F, it can go in your air fryer at 400°F. Cast iron, stainless steel, carbon steel, anodized aluminum, disposable foil trays: all standard oven materials, all workable here.

The catch is space. Air fryer baskets are small and the heating element is close, often only a few inches above the food. A tall metal loaf pan that would disappear into a full-size oven can push food right up against the element.

That’s a burning problem, not a metal problem, and it’s the single most common mistake I see.

Metal that works well inside the basket

These are the ones worth keeping in the drawer next to your air fryer:

• Small stainless steel or metal cake pans (6 inch and 7 inch round tins are the usual sizes for basket-style units)
• Disposable aluminum foil trays and pie tins, trimmed to fit if needed
• Metal ramekins and small springform pans for eggs, dips and single-serving bakes
• Stainless steel skewers, shorter ones, or metal grill racks made for air fryers
• A small cast iron skillet, mainly in oven-style or toaster-oven-style air fryers with more headroom
• Aluminum foil, used the way I describe below

Most brands sell their own metal accessory sets, and those are cut to the exact basket dimensions, which saves the guesswork. Ninja, Instant and Cosori all do. Any oven-safe pan of the right size works just as well.

Metal you should keep out

A short list, and each one has a specific reason:

• Sealed cans. A closed can of anything builds pressure as it heats. Never heat a sealed can in an air fryer.
• Pans with plastic or rubber handles, or plastic-lined lids. The metal survives; the handle melts.
• Anything taller than about two-thirds of the basket depth. Food ends up too close to the element and scorches while the middle stays cold.
• Painted, decorated or thin single-use metal not rated for oven heat, including foil-lined coffee cups with plastic laminate inside.
• Aluminum cookware with a wobbly, warped base in a basket unit, because it can tip when the drawer slides.
• Loose, crumpled foil with nothing holding it down. More on that next.

The aluminum foil rules that actually matter

Foil is safe in an air fryer basket, and it’s the fastest way to stop sticky marinades from welding themselves to the mesh. Two rules matter more than the rest.

First, weigh it down with food. Loose foil gets picked up by the fan and can hit the heating element, which is a scorch and smoke risk. Put the food on top of the foil before the machine starts, and don’t preheat with empty foil sitting in the basket.

Second, leave the perforations clear. Line only the bottom, keep foil away from the sides and vents, and never wrap the food into a sealed parcel unless you’re deliberately steaming it. Air fryers cook by moving hot air across surfaces.

Cover the airflow and you’ve built a slow, small oven.

One more thing people skip: don’t line the outer drawer or the space under the basket. That’s where fat drips and collects, and foil there can trap grease against a hot surface. Some manuals, particularly older Philips models, say no foil at all in specific positions.

The manual for your unit always outranks general advice, and most brands post the PDF free, including Ninja’s official site.

Acidic food and aluminum: a real but small effect

Tomato sauce, lemon, vinegar and citrus marinades react with bare aluminum foil. You’ll sometimes see grey pitting on the foil afterwards, a faint metallic taste, and a small amount of aluminum transferring into the food.

For occasional cooking this isn’t a health emergency, but it does affect flavour and it will chew through your foil. If you’re air frying lemon-marinated chicken or anything tomato-heavy, use parchment paper, a stainless steel pan or the bare basket instead.

Parchment is the easy swap, with one caveat. Most brands are rated to roughly 420°F to 450°F, so check the box before you run a 450°F cycle, and use perforated air fryer parchment rounds rather than solid sheets so air still moves.

Metal tongs, forks and the nonstick coating question

This is the damage most people actually cause. Almost every air fryer basket is coated with a nonstick layer, usually PTFE, and metal tongs, forks and knives scratch it. Once it’s chipped, food sticks in that spot forever and the coating starts flaking.

Use silicone-tipped tongs, wooden spoons or a silicone spatula for turning and lifting. Metal pans sitting inside the basket are fine because they don’t drag across the surface. It’s the poking and scraping that does it.

The same logic applies to cleaning. Metal scourers and steel wool strip nonstick fast. Warm soapy water and a soft brush handle nearly everything, and a soak loosens the rest.

How to fit a metal pan without wrecking the cook

Airflow is the whole game. Here’s the order I’d work in:

1. Measure the basket first, width and depth, then buy or pick a pan at least an inch narrower all round.
2. Check the headroom by lowering the pan in and eyeballing the gap to the element. Food should sit well below it.
3. Preheat empty if your model calls for it, then add the pan.
4. Add 2 to 5 minutes to your usual time. A metal pan blocks air from reaching the underside of the food, so it cooks more like a conventional bake.
5. Shake or flip mid-cycle where the recipe allows, since a pan stops food from crisping evenly.
6. Check doneness with a thermometer, not with time. Chicken and other poultry need 165°F, and the USDA publishes minimum internal temperatures for every cut.

If crispiness is the point, skip the pan altogether. Fries, wings and anything battered want naked contact with moving air. Save the metal pan for eggs, cakes, saucy dishes and small casseroles where you need to contain liquid.

Where the answer shifts by air fryer type

Not every air fryer treats metal the same way, and the differences are worth knowing.

Basket-style drawer units have the least headroom, often just a few inches. These are the models where a tall pan burns the top of a cake. Stick to shallow pans and 6 inch tins.

Oven-style and toaster-oven air fryers give you real clearance and usually come with metal trays and racks already. Cast iron, quarter-sheet pans and larger tins fit comfortably here.

Dual-basket models need pans sized to each individual drawer, and the two zones often have different clearances. Measure both.

Air fryer lids for pressure cookers are the fussiest case. The element sits very close to the food and the included metal rack is designed around that gap. Adding another pan on top can bring food within an inch of the heat.

One genuine exception across all types: any model whose manual explicitly forbids foil or added cookware. A few manufacturers restrict it because of how the airflow or grease drainage is designed. Follow that instruction even though metal is broadly safe elsewhere.

Mistakes that ruin food or the machine

Most complaints about metal in air fryers trace back to one of these:

• Covering the whole basket floor with foil, then wondering why the fries steamed instead of crisped.
• Preheating with empty foil or parchment inside, which lets it lift into the element.
• Using a pan the same width as the basket, leaving no gap for air to move down the sides.
• Cooking tomato or citrus dishes directly on foil, then tasting metal.
• Stirring with a metal fork, scratching the nonstick and creating a permanent sticky patch.
• Lining the outer drawer, which traps grease where it can smoke.
• Overfilling a metal pan, so liquid boils over into the drawer and burns on.

Quick reference: what’s safe and what isn’t

Frequently asked questions

Will metal spark or catch fire in an air fryer?

No. Air fryers heat with an electric element and a fan, so there’s no microwave energy to cause arcing. Metal itself won’t spark.

Fire risk comes from loose foil touching the element, or from grease buildup at the bottom of the drawer, both of which are avoidable.

Can you put aluminum foil in an air fryer basket?

Yes, in most models. Line the bottom of the basket only, put food on top so the foil can’t lift, and leave the perforated areas and side vents uncovered. Skip foil for acidic dishes and skip it entirely if your manual says not to use it.

Does putting a metal pan in an air fryer stop food from crisping?

Partly, yes. A solid pan blocks air from reaching the underside of the food, so you lose the crunch on the bottom and cooking takes a few minutes longer. It’s a fair trade for cakes, eggs and saucy dishes, and a bad trade for fries and wings.

Are metal air fryer accessories worth buying?

They’re useful if you bake, poach eggs or cook anything with sauce, mainly because they’re already cut to fit standard basket sizes. Any oven-safe pan of similar dimensions does the same job. The one thing to check is height, since accessory sets made for oven-style units often don’t clear the element in a drawer model.

Can I use metal utensils to take food out?

You can, but it’s the fastest way to wreck the nonstick coating on the basket. Silicone-tipped tongs cost very little and prevent the scratches that turn into flaking. Once the coating chips, that spot sticks permanently.

Is stainless steel or aluminum better in an air fryer?

Stainless steel holds up longer, won’t react with acidic food and doesn’t warp. Aluminum heats faster and is cheaper, which suits disposable trays and quick bakes. For anything with tomato, vinegar or citrus, stainless steel is the safer pick.

Worth remembering before your next cook

Metal is fine. The basket is metal, the racks are metal, and any oven-safe pan that fits with room to spare will work. Size and airflow decide whether the food comes out well, and foil needs food on top of it before the fan starts.

If your manual says no foil or no added cookware for your specific model, that instruction wins over anything general. Check it once, then cook without second-guessing yourself.