Convection: fan changes baking conditions

Useful to know

A convection oven moves air, changing heat transfer and surface drying. King Arthur explains why this setting is not automatically the best choice for every bake. [1]

Check whether the recipe was developed for a fan oven and what the appliance manufacturer recommends. Do not shorten the baking time arbitrarily just because convection is switched on. On a first attempt, check colour and doneness early. Compare one factor at a time: setting, temperature and shelf height are separate variables.