The temperatures provided are a guide only.
Fan forced vs conventional oven temperatures.
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 is different but as a basic guide you can reduce the temperature by about 20 degrees celsius when cooking with a fan oven.
Unlike conventional ovens which cook food by surrounding it with hot air convection ovens circulate the air.
Oven temperatures all these recipes were tested using a fan forced oven.
See the temperature difference between fan oven and conventional oven here conventional oven to fan oven.
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Fan forced convection oven temperatures are usually set lower than conventional ovens.
A fan forced oven uses a fan at the back of the oven to distribute heat evenly.
And the fan oven for fast cooking and quick browning.
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.
In most ovens the fan forced symbol is represented by a picture of a spinning fan inside a circle.
Generally speaking reducing the recommending temperature by 10 c to 20 c is recommended.
Forced air a k a convection a k a fan bake ovens rely on a fan to circulate the air in the 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.
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If you are using a conventional oven the rough rule of thumb is to add 10 20 c to the recommended temperature.
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.
Keep in mind that compared to conventional oven cooking the cooking temperature needed for oven fan cooking tends to drop by 20 c.
Every oven behaves differently so factor in your knowledge of your own oven.
Convection ovens are built with a fan placed in the back of the oven.
When it comes to using a fan forced oven refer to the operating manual for optimal results.
Conversion chart celsius fan forced.