French fries are a beloved culinary staple around the world, but the traditional deep-frying method often leaves them greasy and heavy. Enter the air fryer: a revolutionary kitchen appliance that uses circulating hot air to achieve crispiness with minimal oil. Making fries from scratch in an air fryer combines the satisfaction of homemade cooking with the convenience and health-consciousness that modern cooks crave. Unlike pre-packaged frozen fries, scratch-made fries allow you to control every aspect-from the type of potato and cut size to seasoning and crispiness-resulting in a personalized, golden-brown snack that rivals even restaurant-quality fries. In this guide, we will explore the optimal temperature, timing, and techniques to achieve perfectly crispy, fluffy, and flavorful fries right from your own kitchen.
Temperature is the cornerstone of achieving perfect air fryer fries. Too low, and the fries become soggy; too high, and they risk burning before cooking through. For most air fryers, the sweet spot for fries lies between 370°F and 400°F (188°C-204°C).
Air fryers vary in their airflow and heat distribution, so it’s important to know your machine. Some models may cook slightly hotter or cooler than indicated, so occasional adjustments may be needed.

Cooking time is just as critical as temperature. For fries, timing depends largely on cut size and potato variety:
Smaller cuts cook faster but can easily burn, while thicker cuts require longer cooking to ensure a soft, fully cooked interior. Remember that shaking or flipping the fries halfway through cooking is essential to expose all sides to the circulating hot air for even crispness.
Visual and tactile cues are the most reliable indicators for perfectly cooked fries:
For consistent results, consider using a kitchen thermometer to ensure the internal temperature of thick fries reaches around 205°F (96°C), indicating fully cooked potatoes.
Making fries from scratch requires just a few basic ingredients:
The beauty of air fryer fries is that they are versatile: you can make them savory, spicy, or even herb-infused, all without adding excessive fat.
Using a temperature higher than recommended can lead to burnt exteriors while the interior remains undercooked, particularly for thick fries. Conversely, a lower temperature produces soft, limp fries that lack the desirable crunch. If you adjust the temperature, compensate with timing adjustments: lower temperature requires longer cooking, while higher temperature demands careful monitoring and frequent shaking to prevent burning.
Cooking time that is too short results in raw or undercooked fries. Overcooking dries them out, leaving an unappetizing, hard texture. If you alter the cooking time:
Even with air fryers, fries can misfire:
Mistakes are part of learning; adjusting cut size, temperature, or shaking technique usually fixes most problems.
Russet potatoes are the ideal choice for air fryer fries because they have a high starch content and low moisture, which helps achieve a crispy exterior and fluffy interior. Yukon Gold potatoes can also be used, but they yield a slightly softer texture.
Yes, soaking potato slices in cold water for at least 30 minutes helps remove excess starch, preventing them from sticking together and promoting a crispier texture. After soaking, pat the fries dry thoroughly before air frying.
For evenly cooked, crispy fries, preheat the air fryer to 375°F (190°C). Cook the fries in a single layer for 15 to 20 minutes, shaking the basket or flipping the fries halfway through to ensure uniform browning.
A small amount of oil-about 1 to 2 teaspoons per pound of potatoes-helps achieve a golden, crispy exterior. You can use neutral oils with a high smoke point, such as canola, vegetable, or avocado oil.
To maximize crispiness, cut the fries evenly, soak and dry them thoroughly, lightly coat them with oil, and avoid overcrowding the air fryer basket. Cooking in batches allows hot air to circulate freely, producing a crispier result.
Yes, you can season fries before air frying, but delicate spices may burn. A simple seasoning of salt, pepper, and paprika works well before cooking. For stronger flavors like garlic powder or herbs, it may be better to add them after frying.
Store leftover fries in an airtight container in the refrigerator for up to 3 days. Reheat them in the air fryer at 350°F (175°C) for 3 to 5 minutes to restore crispiness, rather than using a microwave, which can make them soggy.