A new air fryer often smells like plastic for the first few uses. Run it empty at its highest temperature for 15 minutes in a ventilated room to burn off the manufacturing residue, and the smell should clear on its own.
Unboxing a new air fryer and being hit by a plastic or chemical smell the first time you switch it on is one of the most common worries owners have. In almost every case it is normal, harmless and temporary. Here is exactly why it happens, whether it is safe, how to get rid of it fast, and the rarer situation where the smell is telling you something is actually wrong.
Why this happens
New appliances leave the factory with protective coatings, machining oils and manufacturing residue on the heating element and the interior surfaces. The first few times the fryer gets hot, that residue heats up and releases vapour, which your nose reads as a plastic, chemical or new-appliance smell. It is called off-gassing, it happens across nearly every brand from budget to premium, and it is a sign of newness rather than a fault. The smell is strongest on the very first use because that is when there is the most residue to burn away.
Is it safe?
For a brand-new unit, the off-gassing smell is generally considered harmless and fades quickly, but there is no reason to breathe more of it than you have to. Always run the first few cooks with a window open or the extractor fan on, and keep pets, especially birds, out of the room during the initial burn-off, as birds are particularly sensitive to fumes from any hot appliance. If the smell genuinely bothers you or lingers longer than expected, treat that as your cue to follow the steps below rather than to keep cooking through it.
How to fix it, step by step
- Wash the basket and crisper plate with warm soapy water before the first use, then dry them fully. This removes surface residue straight away.
- Open a window or turn on an extractor fan so the vapour has somewhere to go.
- Run the empty air fryer at its highest temperature for about 15 minutes. This is the burn-off; it deliberately drives out the residue in one go.
- Let it cool, wipe the interior with a damp cloth, and empty and rinse the basket again.
- Cook something forgiving first, such as bread, chips or a tray of vegetables, rather than a delicate dish, in case any faint smell remains.
By the second or third use the smell should be gone entirely. If food still tastes of plastic after the burn-off, stop, repeat the empty high-heat run, and give the basket another wash before trying again.
How to speed it up and prevent it
Beyond the burn-off, a few things help. Cooking strongly flavoured food early on, like anything with garlic or lemon, helps mask and clear the last traces. Leaving the fryer to air out with the basket removed between the first few uses lets residual vapour escape. There is not much you can do to prevent off-gassing entirely on a new unit, because it is inherent to how the appliance is made, but washing before first use and doing the burn-off straight away means you deal with it once and move on.
When the smell is not normal
There is a version of this that you should not ignore. If the smell is still strong after several uses, smells like burning wires or electronics rather than plastic, is accompanied by any visible smoke that is not from food grease, or comes with any sign of melting or discoloration around the housing, stop using the air fryer immediately and unplug it. That points to an electrical fault rather than harmless off-gassing. Do not try to fix it yourself; contact the manufacturer, because a new unit with a fault like that should be replaced under warranty.
What if the smell appears on an older fryer
If a fryer that used to smell fine suddenly develops a plastic or chemical smell, the cause is different and it is not off-gassing. The usual culprit is grease that has baked onto the heating element or the interior and is now scorching each time you cook. Give the machine the thorough clean described in our cleaning guide, paying special attention to the element above the basket. If a deep clean removes the smell, it was residue. If a burning or chemical smell persists on a clean older unit, treat it the same as the electrical warning below and stop using it.
Other new-appliance smells and what they mean
Not every first-use smell is plastic. A faint metallic or oily smell is machining residue and clears the same way with a burn-off. A paint-like smell can come from heat-resistant coatings curing and also fades. What none of these should ever become is a sharp electrical or burning-wire smell, which is the one exception that always means stop and check rather than cook through it.
The bottom line
For a new air fryer, a plastic smell on the first few uses is expected and clears with a simple ventilated burn-off. Wash it, run it empty and hot once, cook something simple, and within two or three uses it will smell of nothing but food. Only a persistent chemical or electrical smell, or any sign of melting, is a reason to stop and call the maker. When you are unsure, the safe order is always the same: ventilate the room, repeat the empty burn-off, wash the basket again, and give it one more try before you worry. Nine times out of ten the smell is gone by then and you can forget it ever happened.
