Convert oven temperatures between Celsius, Fahrenheit and gas mark, with the fan-oven equivalent.
Fan ovens usually need about 20 °C less than a conventional oven.
About 356 °F, usually written as 350 °F in recipes (gas mark 4).
An oven with a fan cooks faster, so use about 20 °C less.
A UK scale for gas ovens, from ¼ to 9.
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