CrispCalc

Air fryer preset

Air Fryer French fries: Perfect Time & Temperature

From frozen, no oil needed. The calculator below is pre-filled with the oven recipe most cooks start from — tweak anything and the air fryer settings update live.

Temperature
395°F
Total time
21 min
Check at
16 min
Yields
Serves 2 as a side
395°21min
Check at 16 min. Shake or flip then, and add time if needed.

How to cook it

What actually makes it work.

Most frozen fries were engineered for a home oven, which means the bag instructions assume slow, indirect heat. An air fryer delivers the same browning faster because the air is moving. The calculator takes a typical 425°F / 25-minute oven recipe and cuts both — you'll be eating fries in under 20 minutes with less oil clinging to the basket than a pan would leave.

  1. 01

    Single layer, always.

    Stack fries and the bottom layer turns to wet starch. A 4-quart basket holds about half a pound in one go. For a family of four, cook in two rounds or upgrade to a 6-quart.

  2. 02

    Shake twice, not once.

    Halfway through, give the basket a hard shake. At the check mark, shake again and pull any that are already golden. Uneven shapes cook unevenly — that's normal, don't fight it.

  3. 03

    Salt after, never before.

    Salt pulls moisture to the surface of a still-soft fry and delays browning. Wait until they're out of the basket, then season while they're still hot so it sticks.

  4. 04

    Fresh-cut? Soak and oil.

    Hand-cut fries need a 30-minute cold-water soak to pull starch, a thorough dry, and 1–2 teaspoons of neutral oil per pound. Then cook a little cooler — around 380°F — for a little longer.

Variations

Cut and style

VariantTemperatureTimeNotes
Frozen shoestring400°F15 minShake at 8.
Frozen crinkle / steak400°F20 minThicker = longer, same temp.
Fresh-cut380°F18 minSoak + dry + 2 tsp oil per pound.
Curly / waffle400°F14 minMore surface area, faster crisp.

FAQ

Questions cooks actually ask.

Do I need to add oil to frozen fries?
No. Commercial frozen fries are already coated — that's why they crisp up. Adding more oil is the fastest way to get soggy fries in an air fryer because the excess pools under the basket instead of evaporating.
Why are mine limp in the middle?
Either they were stacked, or they went in before the fryer was at temp. Give compact basket models a one-minute preheat and spread the fries in a single layer with gaps between them.
Can I double-stack if I shake aggressively?
Not really. Shaking only helps if there's airflow to rotate them into. A loose double layer in a large 6-quart basket can work at a lower temp and longer time, but the result is always a step down from single-layer.
Should I preheat for fresh-cut fries?
Yes, for fresh-cut only. A hot basket helps the outside set before the interior collapses, which is what you want for a real shoestring texture.
How do I reheat leftover fries?
The air fryer is the only way. Five minutes at 380°F brings them back — microwaves make them rubbery, and ovens take too long. Don't add oil; there's enough left from the first cook.
Can I season before cooking?
Dry seasonings like paprika or garlic powder, yes. Salt and anything sugary, no — salt draws moisture and sugar burns. Add those at the end.

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Last updated . Cooking times are guidance — taste and a thermometer win.