Short Answer:

The ideal temperature for cooking frozen fries in an air fryer is between 180–200°C (360–400°F). This temperature range ensures the fries cook evenly, become golden brown, and develop a crispy exterior while staying soft inside.

Cooking at lower temperatures may make fries soggy or undercooked, while too high a temperature can burn the outside before the inside is done. Using 180–200°C helps achieve perfectly crispy and tasty frozen fries every time.

Detailed Explanation:

Ideal Temperature for Crispy Frozen Fries

Temperature Range
Frozen fries cook best at 180–200°C (360–400°F) in an air fryer. This range provides enough heat to crisp the exterior quickly while allowing the inside to cook thoroughly. The exact temperature may vary slightly depending on the fry thickness and air fryer model, but this range is generally reliable for most frozen fries.

Effect on Texture
High, consistent heat is key for creating a crispy texture. Temperatures below 180°C may result in fries that are soft or soggy, as the moisture inside does not evaporate quickly enough. Temperatures above 200°C can cause the exterior to brown too fast, leaving the interior undercooked. Staying within the recommended range balances crispiness and tenderness.

Cooking Time Considerations
At 180–200°C, frozen fries typically cook for 15–20 minutes. Thinner fries may require less time, while thicker or steak-cut fries may need a few extra minutes. Shaking or flipping the fries halfway through cooking helps achieve even crispiness. Adjusting time along with temperature ensures consistently golden and crunchy fries.

Oil and Seasoning
Lightly spraying frozen fries with oil can enhance crispiness at the ideal temperature. Adding a small amount of salt or other seasonings during or after cooking improves flavor without affecting texture. The air fryer’s hot air circulation works best at the right temperature to make the fries crunchy without needing deep frying.

Benefits of Correct Temperature
Using the proper temperature reduces cooking mistakes like uneven browning or soggy fries. It preserves the structure and flavor of frozen fries and ensures they cook safely to the right internal temperature. Proper temperature control also helps save energy by preventing overcooking or unnecessary reheating.

Conclusion:

The ideal air fryer temperature for crispy frozen fries is 180–200°C (360–400°F). This range ensures fries cook evenly, become golden and crunchy outside, and stay soft inside. Maintaining this temperature along with proper timing, flipping, and optional oil spray gives perfectly cooked frozen fries quickly and conveniently.