Is it better to use foil or parchment paper in an air fryer?

Perforated air fryer parchment paper is generally better for everyday cooking as it is non-reactive and allows for better airflow. However, foil is better for wrapping foods or creating custom trays to catch heavy grease. Do not use foil with highly acidic foods like tomatoes.

Can You Put Aluminum Foil in an Air Fryer? (Safety Guide)

Q: Can you put aluminum foil in an air fryer?

Yes, you can put aluminum foil in an air fryer. However, you must make sure it does not cover all the holes in the basket to allow for proper airflow, and you must always weigh the foil down with food so it doesn't blow into the heating element.

Q: What cannot go in an air fryer?

You should never put wet batters, excessive liquids, paper towels, or lightweight leafy greens (unless heavily oiled) in an air fryer. Doing so can cause messes, uneven cooking, or fire hazards.

If you love the crispy convenience of air frying but hate the cleanup, you have likely asked yourself: can you put aluminum foil in an air fryer?

The short answer is yes, you can. However, an air fryer works differently than a traditional oven or microwave. Because it relies on rapid hot air circulation to cook your food, placing foil inside requires a few specific safety precautions to prevent ruined meals or, worse, a fire hazard.

In this guide, we will break down exactly how to use tin foil in an air fryer safely, compare alternatives, and highlight the crucial items that should never go inside your basket.

How to Safely Use Tin Foil in an Air Fryer

Air fryers use a heating coil and a high-speed fan to circulate hot air. If you use foil incorrectly, the fan can blow it into the heating element, or the foil can block the airflow, leaving you with unevenly cooked food.

Here are the golden rules for using foil safely:

Never cover the entire bottom: Do not cover the bottom of the drawer (beneath the basket) or line the basket so completely that the holes are blocked. The hot air must be able to circulate beneath your food.
Always weigh it down: Never preheat your air fryer with empty foil inside. The powerful fan will suck the lightweight foil up into the heating element, which is a major fire hazard. Always place the foil in the basket with your food sitting on top to weigh it down.
Keep it away from the heating element: Ensure the edges of the foil are tucked in and not sticking up toward the top of the machine where the heating coil lives.
Avoid acidic foods: Aluminum is a reactive metal. Do not cook highly acidic foods like tomatoes, citrus fruits, or vinegar-based marinades directly on foil. The acid will react with the aluminum, causing it to break down and leach a metallic taste into your food.

[Image Suggestion: Close-up of an air fryer basket with a small piece of aluminum foil properly placed under a chicken breast. Alt text: How to properly place tin foil in an air fryer basket without blocking airflow.]

Air Fryer Parchment Paper vs Foil: Which is Better?

When looking for an air fryer liner, you generally have two main disposable options. Understanding the debate of air fryer parchment paper vs foil comes down to what you are cooking.

Aluminum Foil

Best for: Catching heavy grease, wrapping foods (like baked potatoes or fish packets), and creating a custom-shaped tray.
Pros: Moldable, can handle very high heat, and most people already have it in their pantry.
Cons: Blocks airflow if not used carefully; reacts with acidic foods.

Perforated Parchment Paper Liners

Best for: Baking cookies or pastries, cooking sticky foods like wings, and general everyday use.
Pros: Non-reactive (safe for tomatoes and citrus), naturally non-stick, and you can buy pre-cut perforated versions specifically designed to let air flow through your air fryer basket.
Cons: Cannot be molded; can catch fire if it touches the heating element or exceeds its maximum temperature rating (usually around 400°F/200°C).

What Cannot Go in an Air Fryer

While air fryers are incredibly versatile, they are not magical machines that can handle everything. To protect your appliance and your kitchen, here is a quick list of what cannot go in an air fryer:

Wet batters: Unlike deep frying, where hot oil immediately sets a wet batter (like tempura or corn dogs), an air fryer will just blow the wet batter right off the food, creating a massive, burnt mess at the bottom of the basket.
Loose, lightweight greens: Spinach or kale can be turned into chips, but they must be coated in enough oil to weigh them down. Otherwise, the fan will blow them into the heating element where they will burn immediately.
Water or excessive liquid: You cannot boil water, make rice, or cook heavy stews in a standard air fryer basket.
Paper towels: These are highly flammable and will catch fire under the intense, circulating heat.

Learn More

Using tin foil in an air fryer is a fantastic way to minimize scrubbing and keep your basket looking brand new. Just remember to leave room for airflow, always weigh the foil down with food, and swap to parchment paper when cooking acidic ingredients.