To heat an oven or broiler in advance of use to assure that it will he the proper temperature when ready to use
If you preheat an oven, you switch it on and allow it to reach a certain temperature before you put food inside it. Preheat the oven to 400 degrees Bake in the preheated oven for 25 minutes or until golden brown. to heat an oven to a particular temperature before it is used to cook something
A fluorescent system which requires starters Withthis system several seconds of heating time are necessary between the timethe circuit is turned on and the time the lamp produces light
Application of heat, applied at a determined rate, from ambient temperature to a desired elevated temperature
To turn on the heat in an oven for a period of time before cooking a dish, so that the fingers may be burned when the food is put in, as well as when it is removed
To allow the oven or pan to get to a specified temperature before adding the food to be cooked