Should the oven be turned off or turned on directly after preheating?

After the oven is preheated, open the door and put the food directly in.

Because of the heating mode of the oven, the oven needs preheating. The heating of the oven is fluctuating heating, and the heating pipe only has two States: electrified heating and stopped working. As long as it works, it will work at full power and stop working when it reaches the specified temperature. It will work when the temperature is low, and so on. So there are only two kinds of oven heating: 0 and 1. Both heating modes fluctuate, so the temperature will not be maintained at a specific temperature, but only within a certain temperature range.

The significance of preheating:

After the oven is started, the heating pipe will keep working until it reaches the required temperature. You know, the temperature of the heating pipe is very high. If the food is exposed to the direct heating of the heating pipe for a long time, the food is easy to burn, the surface is burnt and the inside is not cooked.

Therefore, when food is put in, it is necessary to preheat the oven first, so that the internal temperature of the oven is close to the required cooking temperature, which can reduce the time for heating the food directly by the heating tube, thus reducing the chance of burning the food surface.

Extended data:

Pay attention to cleaning when using the electric oven for the first time. Wipe the inside and outside of the oven with a clean wet cloth to remove some dust. Then you can bake it in an empty oven at high temperature for a while, and sometimes white smoke may appear, which is normal. Pay attention to ventilation and heat dissipation after baking.

The electric oven can be used normally after cleaning. Before baking any food, it needs to be preheated to the specified temperature to meet the baking time in the recipe. It takes about 10 minutes to preheat the oven. If the preheating time of the oven is too long, it may also affect the service life of the oven.