If your air fryer smells after cooking — burnt, greasy, or just off — the basket is probably not the problem. The fix is simpler than you think, but it's not where most people look.
Quick Answer
Air fryer smells after cooking almost always come from grease and food residue built up on the heating element and fan, not the basket. Cleaning the basket alone won't fix it. You need to address the heating coil directly with a foam spray to eliminate the source of the odor.
Where the Smell Is Actually Coming From
The air fryer works by circulating hot air at high speed around your food. Every time you cook something with fat — chicken, bacon, sausage, anything with oil — tiny particles of grease get pulled upward by the fan and coat the heating coil above the cooking chamber.
That residue doesn't rinse off. It bakes onto the coil with every subsequent cook, building up layer by layer until it starts burning every time the element heats up. The result is that familiar smell: not quite food, not quite burning, just wrong. It hits before the food is even cooked, which is the giveaway that it's the coil and not what's in the basket.
Most people clean the basket and wonder why the smell doesn't go away. The basket isn't the source — the coil is.
Why the Smell Gets Worse Over Time
New air fryers don't smell. After a few weeks of regular cooking, they start to. After a few months, the smell is noticeable every time you turn the unit on.
This is normal — but it's not inevitable. The buildup on the heating element is cumulative. Each cook that leaves residue on the coil adds to what's already there, and every subsequent heating cycle burns that residue a little more. The smell isn't one event; it's months of accumulated grease being re-cooked every time you use the appliance.
The good news is that even heavy buildup can be removed. It takes the right approach and a product that can cling to the coil surface long enough to break down the grease — but it's not complicated.
How to Fix Air Fryer Smell: Cleaning the Heating Element
This is the step that solves the problem. It takes about 10 minutes, and most people only need to do it every 5–7 uses once they're on top of it.
What you need: Roobi Air Fryer Cleaning Spray (https://roobi.us/collections/all), a small soft-bristle brush, a dry cloth.
Unplug the air fryer and let it cool completely — at least 30 minutes after last use.
Remove the basket and drawer and set them aside.
Flip the unit upside down so the heating element faces up and is accessible.
Spray Roobi Air Fryer Cleaning Spray (https://roobi.us/collections/all) directly onto the heating coil and fan. The foam formula is designed to cling to the surface rather than dripping off, so it has time to break down the grease.
Let it sit for 3–5 minutes.
Use the brush to work into the crevices around the coil — this is where most of the residue lives and where a cloth can't reach.
Wipe the area clean with a dry cloth.
Reassemble the unit, plug it in, and run it empty for 3 minutes at medium temperature. This burns off any remaining residue from the cleaning process.
After the first time you do this properly, the difference is immediate. The smell on the next cook is either gone or significantly reduced.
How to Clean the Basket and Drawer to Tackle Remaining Odors
Once the heating element is clean, address the basket and drawer — they hold residual grease that contributes to smell even if they're not the primary source.
Dissolve one sachet of Roobi Air Fryer Cleaning Powder (https://roobi.us/collections/all) in 1L of warm water inside the drawer. Submerge the basket. Let it soak for 5 minutes, then insert the drawer back into the air fryer and run at max temperature for 8 minutes. Discard the water and rinse thoroughly.
Do both — coil spray and basket soak — in the same session for the most complete clean. After that, maintaining a clean coil every 5–7 uses prevents the smell from coming back.
Other Reasons Your Air Fryer Might Smell
If you've cleaned the coil and the smell persists, a few other causes are worth checking:
New appliance smell: Brand new air fryers sometimes emit a plastic or chemical smell for the first few uses. This usually disappears after 3–5 cooks. Run the unit empty at high temperature for 10 minutes before first use to accelerate this.
Food debris in the drawer: Small pieces of food that fall through the basket grate and sit in the bottom of the drawer can burn and smell. Check the drawer after every use.
Grease on the exterior: Grease splatter on the outside of the unit near the vent can burn when the appliance heats up. Wipe the exterior — especially around the vent and back panel — with a damp cloth regularly.
Damaged non-stick coating: If the basket coating is visibly worn or flaking, the exposed metal can produce an off smell during cooking. In that case, the basket needs to be replaced.
How Often Should You Clean to Prevent Smell
For the basket and drawer: after every use, or at minimum every other use.
For the heating element: every 5–7 uses, or immediately when you notice any smell developing.
The smell is always a lag indicator — by the time you notice it, the buildup has been there for a while. Getting on a regular coil-cleaning schedule eliminates the problem before it becomes obvious.
FAQ
Why does my air fryer smell like burning plastic?
A burning plastic smell usually means either the unit is new (normal for the first few uses) or something is touching the heating element that shouldn't be. Check that no food or packaging material has gotten into the upper chamber. If the smell continues after several uses, contact the manufacturer.
Can I use baking soda to remove air fryer smell?
Baking soda can neutralize odors temporarily but doesn't remove the grease causing the smell. It's fine as a short-term measure — place a small bowl inside the air fryer overnight — but cleaning the heating element is the only permanent fix.
Why does my air fryer smell like fish even after cleaning?
Fish odors are particularly persistent because the compounds that cause them bond to surfaces and are hard to break down with water alone. Clean the heating element with a foam spray, soak the basket with a powder cleaner, and run an empty cycle at high heat afterward. If the smell is still there, a second cleaning session usually finishes it off.
Is it normal for an air fryer to smell?
A mild smell when cooking fatty foods is normal — some grease will always hit the coil. A persistent smell before the food even finishes cooking, or a smell when the air fryer is empty, means there's buildup that needs to be addressed.
No More Guessing
The smell is fixable, and it doesn't come back if you clean the heating element regularly. Roobi Air Fryer Cleaning Spray (https://roobi.us/collections/all) is designed specifically for this — foam that clings to the coil surface, breaks down grease, and wipes clean without damaging the element.
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