Conventional Oven to Air Fryer
If your oven has no fan, or the packet only gives a conventional temperature, start here. The converter is already set to Conventional.
Why fan and conventional numbers differ
A fan oven blows hot air around the food, so heat reaches it faster and more evenly. A conventional oven heats from elements at the top and bottom and relies on the air moving by itself, so it's usually hotter near the top than the bottom.
That's why most packets print two temperatures, with the fan one lower, often by about 20°C.
An air fryer is a small oven with a strong fan, right next to the food. That's why the temperature comes down again when you move from oven to air fryer.
So a conventional temperature comes down twice: 20°C to get the fan equivalent, then the usual 20°C for the air fryer. The converter does both when it's set to Conventional.
200°C conventional for 30 minutes becomes 160°C for 24 minutes, the same as 180°C fan.
Which one have I got?
- Look at the dial or display. A fan symbol usually means a fan setting. Two lines, one at the top and one at the bottom, usually means conventional. Symbols vary between makers, so the manual is the final word.
- Reading the packet. UK packets often list "Electric", "Fan" and "Gas" separately. Electric means a conventional electric oven.
- If your oven does both, use the fan setting and the fan temperature. It's the one the main converter is built around.