Techniques › Heat and cooking methods
Double-frying for crisp fries
Intermediate Heat and cooking methods
Double-frying for crisp fries is frying potatoes twice, first at a lower temperature to cook them through, then hotter to make the outside crisp.
Written with AI help from the sources listed, and published by Cory. Sources: USDA safe minimum internal temperatures, USDA on the danger zone (40-140°F). Spot a mistake? Tell us and we'll fix it.
How do you do it?
- Cut russets into 1/4- to 1/2-inch sticks, soak in cold water 30 minutes, then dry them very well.
- Fry in small batches at 300-325°F for 5-7 minutes, until soft and limp but still pale.
- Drain and cool at least 15-30 minutes (or chill or freeze them for later).
- Fry again at 365-375°F for 2-4 minutes until deep golden and crisp; salt right away.
Why does it work?
The first fry cooks the inside: starch granules swell and soften while the surface dries into a thin skin. Cooling lets that softened starch firm up and moisture move outward. The hot second fry then drives water out of the surface fast, setting a rigid, crisp shell around a fluffy middle. Soaking rinses off loose surface starch and sugar, so fries brown evenly instead of darkening too soon.
What are the common mistakes?
- Wet potatoes into hot oil — violent spattering and soggy fries.
- One fry at high heat — brown outside, raw or greasy inside.
- Too many at once — oil temperature crashes and the fries soak up grease.
Still stuck? Watch someone do it on YouTube.
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