The general rule for using the fan is to set the oven temperature 25 degrees f 15 c lower than what the recipe calls for using in a regular oven.
Fan forced vs conventional oven temperatures.
Oven temperatures all these recipes were tested using a fan forced oven.
In all of nigella s books the temperatures stated in celsius fahrenheit or gas mark are for standard ovens and not for fan forced or convection ovens.
Convection ovens are built with a fan placed in the back of the oven.
In most ovens the fan forced symbol is represented by a picture of a spinning fan inside a circle.
Forced air a k a convection a k a fan bake ovens rely on a fan to circulate the air in the oven.
Difference between conventional oven with fan assisted and convection with.
Unlike conventional ovens which cook food by surrounding it with hot air convection ovens circulate the air.
A fan forced oven uses a fan at the back of the oven to distribute heat evenly.
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Keep in mind that compared to conventional oven cooking the cooking temperature needed for oven fan cooking tends to drop by 20 c.
The temperatures provided are a guide only.
Conversion chart celsius fan forced.
Every oven is different but as a basic guide you can reduce the temperature by about 20 degrees celsius when cooking with a fan oven.
And the fan oven for fast cooking and quick browning.
See the temperature difference between fan oven and conventional oven here conventional oven to fan oven.
The heating element around the fan equalises the temperature inside the oven heating every level or tray inside the chamber equally.
Generally the temperature would be reduced by 20c 50f for a fan forced oven but as ovens do vary we suggest that you check your manufacturer s handbook for more specific instructions.
Every oven behaves differently so factor in your knowledge of your own oven.
If you are using a conventional oven the rough rule of thumb is to add 10 20 c to the recommended temperature.
When it comes to using a fan forced oven refer to the operating manual for optimal results.
Increase the temperature given by 10 20 degrees to convert to conventional oven temperature for example 160 degrees fan bake 180 degrees conventional oven or refer to your particular oven s manual or manufacturer s instructions.
But the fan forced function means air is already constantly moving so the fan forced setting should naturally minimise any mixing of flavours and odours.