Soggy food from an air fryer almost always comes down to one thing: trapped steam. Too much food, too much surface moisture, too little heat or blocked airflow, and your chips steam instead of crisping. The fixes are simple. Cook in a single layer with gaps, dry the food well, use a light coating of oil, cook hot enough, shake or turn halfway, and eat it straight away. Below are the twelve mistakes we see most often, grouped by where they happen, with what to do instead. Every model is a little different, so keep your manufacturer's manual to hand as well.
Loading the basket
1. Overcrowding the basket
This is the big one. An air fryer crisps food by blowing hot, dry air across its surface. Pile food up and the pieces in the middle are surrounded by the steam coming off their neighbours, so they soften rather than brown.
Fix: cook in a single layer with a little space between pieces. For chips and small vegetables, a shallow, loose layer is fine as long as you shake it often. If you have more food than fits, cook in batches and keep the first batch warm on a rack in a low oven.
2. Cutting pieces unevenly
Mix thick and thin chips and the thin ones burn while the thick ones stay pale and soft in the middle.
Fix: cut everything to roughly the same size and thickness. If you are cooking different vegetables together, cut the denser ones (potatoes, carrots) smaller than the quick-cooking ones (peppers, courgettes).
3. Sealing the base with paper or foil
A sheet of foil or baking paper that covers the whole base stops air flowing up through the basket. The underside of your food sits in its own moisture and never crisps.
Fix: cook crisp foods straight on the basket. If you need a liner for something sticky, use a perforated one or cut the paper smaller than the base so air can get round it, and always weigh it down with food. Our guide to foil and baking paper in the air fryer explains the safe way to do it.
Preparing the food
4. Putting food in wet
Water has to evaporate before food can brown. Rinsed vegetables, soaked potatoes, chicken straight from its packaging and marinated meat all carry surface moisture that turns into steam.
Fix: pat everything dry with kitchen paper before oiling or seasoning. With chicken skin, dry it thoroughly; it makes a real difference to recipes like Crispy Chicken Thighs. The exception is frozen food: cook oven-ready chips and breaded foods straight from frozen, as defrosting them first makes them limp.
5. Getting the oil wrong
Too much oil pools in the basket, drips, smokes and leaves food greasy. None at all can leave fresh potatoes and breadcrumbs dry and pale.
Fix: toss fresh vegetables and potatoes in a small amount of oil, just enough to coat them thinly. For breadcrumbed foods, a light mist from an oil sprayer helps the coating turn evenly golden, which makes all the difference to something like Crispy Panko Chicken Tenders. Many manufacturers advise against aerosol cooking sprays because they can damage non-stick coatings, so check your manual and use a refillable pump sprayer or a brush instead.
6. Using wet batters
A runny batter, like the one you would use in a deep-fat fryer, has nothing to set it on contact. It drips through the basket and makes a mess rather than a crust.
Fix: use a dry coating instead: flour, then beaten egg, then breadcrumbs or panko. Press the crumbs on firmly and chill the coated food for a few minutes if you have time, which helps it stay put.
7. Saucing too early
Toss wings in sauce before cooking and they steam in it. Sugary glazes such as honey, maple or barbecue sauce also burn before the meat inside is done.
Fix: cook the food until crisp first, then toss it in the sauce. For glazes, brush them on during the last few minutes of cooking.
Setting and cooking
8. Cooking too low
A low temperature dries food out slowly without ever browning the outside. The result is chewy rather than crisp.
Fix: most crisp foods do best somewhere around 180–200°C. Drop the temperature only for things that burn easily, such as thin crisps, kale or delicate bakes, and follow your recipe's guidance.
9. Skipping the preheat when it matters
Putting coated food into a cold basket means the first few minutes are spent warming up rather than setting the crust.
Fix: if your model and recipe call for it, preheat for a few minutes. Some air fryers heat so quickly they barely need it, so your manual is the final word. Never preheat with loose baking paper in the basket.
10. Not shaking or turning
The top of the food is closest to the element and gets the most heat. Leave it alone and you get a crisp top and a soft underside.
Fix: shake chips, vegetables and small pieces once or twice during cooking. Turn larger items, such as chicken pieces, fillets and burgers, halfway through.
After cooking
11. Leaving food in the drawer to keep warm
Once the air fryer switches off, the drawer becomes a warm, enclosed box. Food keeps releasing steam, which settles back onto it, and your crisp coating softens within minutes.
Fix: tip food out onto a plate or a wire rack as soon as it is ready. If you need to hold it, spread it out on a rack in a low oven rather than piling it in a bowl.
12. Ignoring the fat and crumbs underneath
Fat and crumbs that collect under the basket can smoke and burn, and a greasy drawer makes the whole appliance work less well.
Fix: empty the fat after fatty foods such as bacon, wings or sausages, and clean the basket and drawer regularly, following the manufacturer's instructions for non-stick parts.
The quick checklist: single layer, dry surface, thin coat of oil, 180–200°C for most things, shake or turn halfway, serve immediately.
What went wrong? A quick diagnosis
| What you see | Most likely cause | Try this next time |
|---|---|---|
| Soft, pale chips | Overcrowding or wet potatoes | Dry thoroughly, cook in batches, shake more often |
| Crisp top, soggy bottom | Not turned, or base covered by a liner | Turn halfway; cook directly on the basket |
| Burnt outside, raw inside | Too hot, or pieces too thick | Lower the heat slightly and cut smaller |
| Dry, chewy coating | No oil, or cooked too low | Light mist of oil; raise the temperature |
| Coating falling off | Wet batter or crumbs not pressed on | Flour, egg, crumb; press firmly |
| Smoke from the drawer | Fat build-up or too much oil | Empty the drawer; use less oil |
Getting these basics right is most of the battle. After that, it is a matter of good recipes. A batch of Air Fryer Roast Potatoes is a good test of everything above: dry, lightly oiled and given room to breathe. If you want more like it, search the recipe finder for potatoes, or browse The Everyday Air Fryer, where each recipe gives its time and temperature and says what to do with a smaller basket. And if you are still deciding which dishes to air fry at all, read air fryer vs oven.
Questions people ask
Why are my air fryer chips soggy?
Usually because there are too many in the basket, or the potatoes were wet when they went in. Dry them thoroughly, toss in a little oil, cook in a single loose layer and shake them two or three times. Eat them straight away rather than leaving them in the drawer.
Do I need to add oil to frozen food?
Generally not. Most oven-ready frozen chips, nuggets and breaded fish have already been part-cooked in oil. Cook them from frozen, in a single layer, and shake halfway. The Everyday Air Fryer has a whole chapter of frozen-to-crispy staples, starting with Perfect Frozen Fries.
Why does my air fryer smoke?
Most often it is fat that has dripped from fatty foods and is burning in the drawer, or leftover grease from a previous cook. Empty and clean the drawer, and use less oil. If the smoke continues, stop using the appliance and check the manufacturer's guidance.
Can I open the drawer during cooking?
Yes. Most basket air fryers pause or carry on safely when you pull the drawer out, and checking or shaking the food is part of cooking well. Push it back in firmly so it restarts, and check your manual for your model.