Air Fryer Sweet Potato (Time & Temperature)
Exactly how long to air fry sweet potato, plus temperature and tips.
Updated 9 September 2026
The air fryer makes sweet potato quick and easy. Set it to 200°C / 400°F and cook for 25-35 min - the cheat sheet on this page has everything at a glance, and the steps below walk you through it. Whole sweet potatoes need 25-35 min, but 2 cm cubes are done in 15-18 min - prick the skin all over before cooking either way.
How to air fry sweet potato
- 1Preheat the air fryer to 200°C / 400°F.
- 2Prepare the sweet potato and toss or rub with olive oil, salt, pepper and a pinch of smoked paprika.
- 3Arrange in a single layer in the basket so the air can circulate.
- 4Air fry at 200°C / 400°F for 25-35 min. Turn every 10 min.
- 5Cook until the skin is wrinkled and crisp and a knife slides into the centre with no resistance.
Fresh vs frozen
Fresh
Fresh sweet potato: 200°C / 400°F for 25-35 min.
From frozen
From frozen: 200°C / 400°F for 15-20 min, adding a few minutes as needed.
Tips for the best results
- Whole sweet potatoes need 25-35 min, but 2 cm cubes are done in 15-18 min - prick the skin all over before cooking either way.
- Serve sweet potato straight from the basket while hot and crisp.
- Adjust by a minute or two for your air fryer - every model runs slightly differently.
Common mistakes to avoid
- Overcrowding the basket, which steams sweet potato instead of crisping it.
- Skipping the shake or flip, leading to uneven cooking.
Frequently Asked Questions
How long do you cook sweet potato in an air fryer?+
Cook sweet potato at 200°C / 400°F for 25-35 min, turn every 10 min. Times vary a little by size and by air fryer model.
What temperature for sweet potato in an air fryer?+
Set the air fryer to 200°C / 400°F for sweet potato.
Can you cook sweet potato from frozen?+
Yes. From frozen, cook at 200°C / 400°F for 15-20 min, shake every 5 min.