Reheat · leftover
How to reheat french fries in an air fryer
At 400 °F (204 °C) for 3 minutes, shake once at null minutes.
At-a-glance reheat parameters
- Temperature
- 400 °F
- 204 °C
- Total time
- 3 min
- single layer
- Shake at
- null min
- shake once
- Serving
- 1 portion
- single layer
Leftover french fries crisp back at 400 °F (204 °C) in just 3 minutes with one shake. This is the most common reheat task the air fryer was made for, and the result is closer to fresh-fried than any oven or microwave attempt.
Technique
No oil — the leftover fries have plenty. Spread them in a single layer, shake the basket once at the halfway mark, and salt again at the end so the fresh salt sticks to the hot oil on the surface.
Serving size: About 2 cups of fries in a single layer.
How to tell it’s done
Fries are evenly crisp; centres are hot through; thicker steak fries may need an extra minute.
Watch out for
- Do not stack. Stacked fries steam each other and stay limp.
- Skip this for fries that came in a sealed container with a lot of condensation — they will never crisp back. Dry them on a paper towel for a few minutes first.
Cooking frozen french fries from fresh instead? Different times and temperatures apply.
Last updated .