Quick answer: White or grey smoke from an air fryer is almost always grease or food residue burning off the drawer, basket or heating element. It’s annoying, but not a fault, and cleaning fixes it. Black smoke, a burning plastic or electrical smell, sparks or a hot plug mean stop, switch off at the wall and unplug it, then let it cool before investigating.
A smoking air fryer is one of the most common problems owners search for, and in most cases the cause is simple: fat. Air fryers cook fatty foods at high temperatures in a small space, and any grease left in the drawer or splattered on the element will smoke the next time it heats up. This guide explains how to tell harmless smoke from a real problem, the common causes, how to stop it, and when to stop using the appliance.
What the Smoke Colour Tells You
| Smoke or smell | Likely cause | What to do |
|---|---|---|
| Thin white smoke or steam | Water or moisture evaporating from food | Normal, nothing to do |
| White or grey smoke with a fried smell | Grease burning in the drawer or on the element | Finish or stop cooking, then deep clean |
| Light smoke and a “new” smell in the first few uses | Manufacturing residue burning off | Run empty for 10–15 mins, ventilate |
| Black smoke | Food burning, or an electrical fault | Switch off, unplug, let it cool, inspect |
| Burning plastic or electrical smell, sparks | Possible electrical fault | Stop using it and contact the manufacturer |
The Most Common Causes
1. Grease in the drawer
Fatty foods like sausages, bacon, chicken wings, burgers and duck release a lot of fat. If it’s left in the drawer, it overheats and smokes on the next cook. This is the cause most of the time.
2. Grease on the heating element
Fat spatters up onto the element and the inside of the top of the cavity. It’s out of sight, so it builds up over weeks and burns every time you cook.
3. Cooking very fatty food at high temperature
Fat starts to smoke at high temperatures. Cooking fatty meat at 200°C or above can produce smoke even in a clean air fryer.
4. Food or crumbs touching the element
Overfilled baskets, light foods (like loose breadcrumbs, herbs or cheese) and parchment paper that blows upwards can touch or reach the element and burn.
5. Oil with a low smoke point, or too much oil
Extra virgin olive oil and butter smoke at lower temperatures. Too much oil drips into the drawer and burns.
6. Sugary marinades and sauces
Honey, maple syrup, BBQ sauce and sugary glazes drip and caramelise, then burn.
How to Fix a Smoking Air Fryer
- Switch off and unplug it. Pull the drawer out and let it cool for at least 30 minutes. Don’t pour water onto a hot drawer.
- Empty the drawer. Pour off grease into a container to put in the bin (not down the sink) and wipe out residue with kitchen paper.
- Wash the drawer and basket in hot soapy water. For baked-on grease, soak for 20–30 minutes first.
- Clean the heating element. With the unit cold and unplugged, turn it upside down if your manual allows, and wipe the element and the top of the cavity with a damp cloth and a little washing-up liquid. Use a soft brush for stubborn bits. Never pour liquid onto it.
- Dry everything thoroughly and run the air fryer empty at 200°C for 5 minutes to check the smoke has gone.
Full cleaning steps, including baked-on grease, are in our air fryer cleaning and maintenance guide.
Quick Fixes Mid-Cook
- Add 2–3 tablespoons of water to the drawer (not the basket) when cooking very fatty food. It stops dripping fat from overheating. Some manufacturers suggest this; check your manual.
- Lower the temperature to 180°C for fatty meats.
- Pour off fat halfway through long cooks like chicken wings or a batch of sausages.
- Open a window and turn on the extractor fan; air fryers usually set off smoke alarms only when grease is burning heavily.
How to Stop It Happening Again
- Empty and wipe the drawer after every use, especially after fatty foods.
- Clean the element monthly, or more often if you cook a lot of meat.
- Use oils with a high smoke point, like vegetable, sunflower, rapeseed or groundnut oil.
- Don’t overfill the basket, and weigh down any parchment so it can’t blow into the element.
- Add sugary sauces late, in the last few minutes.
- Our Cleaning Scheduler builds a routine based on how often you cook.
A New Air Fryer That Smokes or Smells
A light chemical smell and a little smoke during the first few uses is common, as protective coatings and residue from manufacturing burn off. Wash the basket and drawer, then run the air fryer empty at 200°C for 10–15 minutes with a window open. If the smell persists after several uses, or you see black smoke, contact the retailer or manufacturer.
When to Stop Using It
Stop using the air fryer and contact the manufacturer if you see sparks, black smoke that isn’t from burnt food, a melting or burning plastic smell, a scorched or hot plug or cable, or if it trips your electrics. Check whether your model is subject to a recall, and register your appliance with the manufacturer so you’re told about safety notices. If it won’t heat at all, see air fryer won’t turn on or heat up.
Frequently Asked Questions
Is a little smoke normal?
A little white steam from moist food is normal. Regular smoke with a fried smell means grease is building up and the air fryer needs cleaning.
Will foil in the basket help?
It can catch drips from fatty food, but don’t cover the whole basket, as it blocks airflow. Never put foil in the drawer underneath the basket. See can you put foil in an air fryer.
Does cooking spray cause smoking?
Aerosol sprays with additives can build up a sticky residue that burns and also damages non-stick coatings. Use a refillable spray bottle with ordinary oil instead.
Why does my air fryer smoke when cooking bacon?
Bacon releases a lot of fat. Cook it at 180°C rather than 200°C, and add a little water to the drawer.
Is it dangerous to breathe air fryer smoke?
Occasional smoke from burnt grease is unpleasant rather than dangerous, but ventilate the room, and don’t keep cooking while it smokes heavily.
