Roast potatoes in the air fryer
Roast potatoes takes 15 to 26 minutes at 390°F (200°C) in an air fryer, shaken or turned at 12 minutes.
What to know about air frying roast potatoes
Ninja's UK guide puts roast potatoes at 200°C for 15 to 26 minutes, against 40 to 50 in a conventional oven — one of the largest time savings on its whole chart. The eleven-minute spread is chunk size and variety. A floury potato such as Maris Piper or russet will give you the collapsed, fluffy interior people want; a waxy salad potato will stay dense no matter how long you leave it, which is a shopping problem rather than a cooking one.
The mistake people make
Skipping the parboil because the air fryer is supposed to be the quick option. Roughing up the surface of a parboiled potato is what creates the craggy, starchy exterior that crisps — raw chunks straight into the basket come out smooth-skinned and disappointingly even. Ten minutes in boiling water buys you the whole texture.
How to tell when it's done
A deep, uneven brown with visibly crisp ridges, and a skewer that slides through the middle without resistance. If the outside has coloured but the skewer still catches, the chunks were too big rather than the time too short.
At a glance
| Air fryer temperature | 390°F |
|---|---|
| Time | 15–26 minutes |
| Shake or flip | At 12 minutes |
| Preheat | Yes |
| Single layer | Yes — do not stack |
| Oil | 1 tsp |
| From | Fresh |
Questions people ask
How long does roast potatoes take in an air fryer?
15 to 26 minutes at 390°F, shaking or turning at 12 minutes. That figure comes from Ninja (SharkNinja UK). Cook times shift with the size and power of your machine, so treat the lower end as the point to start checking.
What temperature should I air fry roast potatoes at?
390°F, or about 200°C. That sits inside the 350–400°F band the USDA describes as typical for air frying.
Can you air fry roast potatoes?
Yes. Use 1 tsp of oil. Keep it to a single layer — crowding the basket blocks the air circulation the machine depends on, which the USDA specifically warns about. Preheat the machine first.
How do you know when roast potatoes is done in an air fryer?
A deep, uneven brown with visibly crisp ridges, and a skewer that slides through the middle without resistance. If the outside has coloured but the skewer still catches, the chunks were too big rather than the time too short.
What is the most common mistake when air frying roast potatoes?
Skipping the parboil because the air fryer is supposed to be the quick option. Roughing up the surface of a parboiled potato is what creates the craggy, starchy exterior that crisps — raw chunks straight into the basket come out smooth-skinned and disappointingly even. Ten minutes in boiling water buys you the whole texture.
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Sources
- Air Fryer Cooking Time Guide — Ninja (SharkNinja UK). Checked 2026-08-06.
Times are a starting point, not a guarantee. Every air fryer differs in wattage and basket size, so check early and trust a thermometer over a timer. Written and checked by Christian Weber. Please read the disclaimer.