Frozen French Fries in Air Fryer: 400°F (205°C) for 15 Minutes
Cook frozen french fries in an air fryer at 400°F (205°C) for 15 minutes instead of 425°F for 22 minutes in a conventional oven, shaking or turning halfway through cooking until golden brown and deeply crispy exterior with steaming fluffy interior.
Convert 425°F oven frozen fries to 400°F in the air fryer for 12–15 minutes. Shake the basket vigorously every 4 to 5 minutes to redistribute fries for 360-degree crispness.
Larger cavity requires longer preheat and slower surface moisture evaporation.
Midpoint (8 min): Vigorously shake basket every 5 minutes to ensure uniform crispiness
International Oven Dial & UK Gas Mark Reference
| Static °F | Static °C | Fan °C | Gas Mark | Heat Zone |
|---|---|---|---|---|
| 225°F | 110°C | 90°C Fan | Gas Mark ¼ | Very Cool / Drying & Meringues |
| 250°F | 120°C | 100°C Fan | Gas Mark ½ | Very Slow / Slow Braising |
| 275°F | 140°C | 120°C Fan | Gas Mark 1 | Slow / Custards & Rich Fruitcakes |
| 300°F | 150°C | 130°C Fan | Gas Mark 2 | Slow–Moderate / Casseroles & Shortbread |
| 325°F | 165°C | 145°C Fan | Gas Mark 3 | Moderate / Cheesecakes & Loaf Cakes |
| 350°F | 180°C | 160°C Fan | Gas Mark 4 | Moderate / Everyday Baking, Cookies & Layer Cakes |
| 375°F | 190°C | 170°C Fan | Gas Mark 5 | Moderately Hot / Pies, Muffins & Roasting |
| 400°F | 200°C | 180°C Fan | Gas Mark 6 | Hot / Crispy Roasting, Puff Pastry & Scones |
| 425°F | 220°C | 200°C Fan | Gas Mark 7 | Hot / Artisan Bread, Roasted Veg & Yorkshire Pudding |
| 450°F | 230°C | 210°C Fan | Gas Mark 8 | Very Hot / Hearth Loaves & High-Heat Roasting |
| 475°F | 245°C | 225°C Fan | Gas Mark 9 | Very Hot / Dutch-Oven Sourdough & Skillet Sear |
| 500°F | 260°C | 240°C Fan | Gas Mark 10 | Extremely Hot / Pizza Stone & Flatbreads |
Frequently Asked Questions
Do frozen french fries need oil in the air fryer? ▾
No, commercial frozen fries are already flash-fried in oil before freezing. They crisp up remarkably well in the air fryer without added grease.
Why are my air fryer fries soggy? ▾
Overcrowding the basket causes fries to steam rather than crisp. Cook in single or loose layers, shaking frequently for airflow.