An air fryer is a small, powerful convection oven. The differences are size, airflow intensity, and preheat time. The cooking mechanism is the same.
What the air fryer does differently
The smaller chamber circulates hot air faster and more intensely, giving you more aggressive surface drying and browning in less time. Heat is less even on larger items - the parts closest to the element cook faster.
- Reheating leftovers Restores crispness that a microwave can't. Chips, roast potatoes, fried chicken - results are noticeably better.
- Frozen food Faster than an oven and better surface texture. Saves 10–15 minutes on most things.
- Small batches Heating a full oven for two chicken thighs is wasteful. The air fryer makes sense for one or two portions.
- Speed Skip the preheat on most things and start immediately.
- Large cuts of meat Whole chickens, joints, anything that needs even heat over time. Air fryers cook the outside too fast on large items.
- Multiple trays Cooking for four or more people. Air fryers require batches - the oven does it all at once.
- Baking Cakes, bread, anything requiring stable, consistent heat. Air fryers are too aggressive and uneven.
- Roasting vegetables in volume Overcrowding an air fryer steams rather than roasts. You need the space of a full tray.
The honest take
If you cook for one or two people regularly and reheat leftovers often, an air fryer earns its space. If you're cooking for a family or doing any real batch cooking, the oven remains the primary tool and the air fryer is a useful addition for specific tasks.
The mistake is reaching for it because it's new. Use it where it wins.
Food that fits in a single layer without touching - air fryer. Anything that needs a tray - oven.
Temperature conversions
Most air fryer recipes suggest reducing oven temperature by 20°C and cutting time by roughly 20%. Check early, especially on anything new.