The timer has finished, but the chips bend rather than crunch. Before turning the temperature up, look at what went into the basket and how it was arranged. A small change to the next batch can tell you more than another five minutes at maximum heat.
For a crisper result, try a smaller batch, dry fresh ingredients before oiling them and turn or shake food as your manual directs. Use the settings intended for that food. If the outside is already dark while the centre is underdone, keep cooking at a gentler setting rather than chasing more colour.
Give the food more room
A basket that physically holds a bag of snacks may still be too crowded for even browning. Philips recommends smaller portions and a single layer of snacks when crispness is disappointing. Try that before changing your temperature.
Use the crisper plate or rack specified by your model. If dinner needs several batches, decide whether the oven would make serving everyone together easier. A larger litre capacity does not tell you how many pieces fit side by side.
Dry fresh ingredients before adding oil
For fresh chips, finish the preparation properly. Philips advises soaking cut potatoes for at least 30 minutes, then drying them thoroughly before oiling. Do not tip wet potatoes straight from the bowl into the drawer.
A light, even coating is the aim. Add oil to the food in a bowl or brush it on as the recipe directs; do not pour it into the appliance pan. Pre-fried frozen chips usually already contain oil, so check the packet before adding more.
Smart tipChange one thing at a time. Keep the same chips and settings but reduce the load for your next batch. If that helps, you have found a more useful adjustment than a hotter preset.
Move the food during cooking
Turn pieces or shake loose chips according to the recipe and manual. Move the lower pieces upwards rather than merely sliding the whole pile from side to side. Handle delicate coatings gently with suitable utensils.
Ninja’s cooking charts advise checking and shaking or tossing during the cook. Use that inspection to spot uneven browning early: one dark edge and one pale edge suggest that the food needs repositioning, rather than simply a longer timer.
Match the setting to the problem
Check whether you used air-fryer instructions or a time intended for deep frying. Philips notes that deep-fryer timings can be too short for its air fryers. Follow the packet’s air-fryer method or your model’s relevant cooking chart.
Separate texture from doneness. If a portion is pale but cooked through, a little more cooking may help; watch closely. If it is dark outside and cold inside, more intense heat is the wrong adjustment. Use a lower supported setting and continue checking the centre.
Check doneness, then serve
A crunchy coating cannot establish that chicken or another raw filling is cooked. Follow the food’s cooking instructions and check the thickest part. UK guidance gives 70°C for two minutes or 75°C for 30 seconds as safe core temperature combinations; use a clean probe.
Serve crisp foods promptly. For your next attempt, note the food weight, setting and adjustment that helped. A brief note such as “half a bag, turn twice” is easier to repeat than trying to remember which preset you pressed last week.
Air fryers vary in power and basket design. Use these timings as a starting point and follow your manufacturer’s instructions where they differ.
Frequently asked questions
Will more oil make my chips crispier?
Not necessarily. Dry fresh potatoes first and use a light coating following your recipe. Pre-fried frozen chips often need no extra oil. Never pour oil directly into the appliance pan.
Should I always use the highest temperature?
Use the temperature intended for the food and your model. Maximum heat can darken a coating before the centre is cooked. Check basket space and preparation before increasing the setting.
Can I fill the basket to its maximum mark?
Stay within the manufacturer’s limit, but treat that as a ceiling rather than a promise of crisp results. Foods that need space may work better in a smaller batch.
Sources and further reading
Safety, appliance and recipe guidance was checked against the following sources. Always follow the instructions for your own model.
