However, if you have a combination convection/microwave oven, or a convection oven, then you can preheat it. The process for preheating a combination or convection oven will differ depending on the model of your LG oven.
- Preheating an oven
When you know the temperature at which your food must be cooked, you should set the oven to this temperature. More modern ovens are usually designed to measure temperature in degrees Celsius - older ovens may use degrees Fahrenheit, or a Gas Mark system.
Once you have set the temperature, you should leave your oven for at least five minutes. Older ovens may not provide any notice when they reach the right temperature, but leaving your oven for five minutes or more will ensure that the oven is very hot. More modern ovens may make a sound, show a symbol or even flash when they reach the correct temperature. When this occurs, your oven is ready to cook your food.
- Why should I preheat my oven?