10 Air Fryer Mistakes to Avoid for Crispier, Safer Cooking

1. Overcrowding the basket

An air fryer works by moving hot air around the food. If the basket is packed, the air cannot reach every surface, and you get pale, soft food. Cook in a single layer with a little space between pieces. If you have a lot to cook, work in batches. Two crisp batches beat one soggy one.

2. Skipping the preheat

You do not always need to preheat, but about three minutes helps. The food starts cooking at the right temperature and browns better, and cooking times match the converter more closely. It matters most for frozen foods and things you want crisp.

3. Cooking wet food

Water turns to steam, and steam prevents crisping. Pat chicken, potatoes and vegetables dry before cooking. Wet batters are a problem too, because they run through the basket before they set. Use a dry coating such as breadcrumbs, or a pre-set frozen product.

4. Using too much oil, or the wrong kind

A thin film of oil helps with browning and flavour, but more is not better. Too much oil can drip and smoke. Many manufacturers also advise against aerosol cooking sprays, because the propellants and additives can damage the non-stick coating. Check your manual. A small pump bottle or a brush is a safer way to apply oil.

5. Ignoring the cooking time conversion

An air fryer is faster than an oven. If you use the oven time from a recipe, you will overcook food. Lower the temperature by about 15 °C and shorten the time by about 20%. Our air fryer converter does this for you, and then you can adjust.

6. Not shaking or flipping

Hot air hits the top of the food hardest. If you do not shake the basket or flip the food halfway, one side stays pale. Shake chips and small pieces, and turn larger pieces such as chicken and fish.

7. Blocking the airflow

Parchment and foil are fine if they are the right shape and held down by food, but a loose sheet can fly up into the heating element. Use perforated liners made for air fryers, and never preheat with an empty liner inside. Do not cover the whole basket, or the air cannot move.

8. Judging doneness by colour

Brown does not mean cooked. Poultry should reach 74 °C (165 °F), according to the US Department of Agriculture, ground beef 71 °C (160 °F), and fish 63 °C (145 °F). Use a probe thermometer, especially for thick pieces and frozen food. Also see our guide to raw vs cooked weight when you plan portions.

9. Not cleaning it

Grease and crumbs build up in the basket and under the heating element. They smoke, smell and can affect flavour. Wipe the basket after each use, wash it with warm soapy water, and clean the inside of the machine according to the manual. Make sure the machine is unplugged and cool before cleaning.

10. Placing it badly

An air fryer needs space around it. Leave room at the back and sides, keep it away from the wall, and do not use it directly under a cabinet where steam can build up. Use it on a stable, heat-resistant surface. Follow the manufacturer's clearance instructions.

Bonus: choosing foods that suit it

Air fryers are best for foods that benefit from dry, circulating heat: wings, potatoes, vegetables and frozen snacks. They are less suited to wet batters, large roasts and delicate leafy greens.

A simple routine for good results

• Preheat for three minutes.
• Dry the food and add a light coat of oil.
• Arrange it in a single layer.
• Cook for the converted time minus a couple of minutes.
• Shake or flip halfway, and check with a thermometer.
• Add a few minutes if needed, and note the setting for next time.

The short version

Do not overcrowd, dry your food, use a little oil, convert the time and check the temperature. A few small habits make the difference between pale and perfectly crisp.