The preheating time is different with different set temperature and oven size. The preheating time of most basic ovens is 6~ 10 minute. Generally, I don't pinch my watch, but look at the heating tube to judge that when the heating tube starts to fully heat up, it is the color of red-hot carbon. When it turns from red to black, it means that it is preheated. At this time, the temperature has reached the set point, and the heating tube begins to heat up steadily and continuously.

When the oven is used, it must be preheated for a period of time. The purpose of preheating is that when food enters the oven, the inside of the oven has reached the required temperature.

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The baking temperature and time to be used in baking are mainly determined by the following factors:

1, types of cakes

The higher the sugar content of the cake, the lower the baking temperature, which can make the cake bake normally without caramelization effect.

2. The size of the cake

The bigger the size of the cake, the lower the baking temperature, so that the center of the cake can be cooked and the bottom and periphery will not be burnt;

3. The quality of the cake

The lower the baking temperature for cakes with rich texture, because it is not easy to convert excessive sugar into caramel and burn it. The cheaper the cake, the higher the baking temperature, which can avoid the cake from being too dry.

4. Thickness and density of the cake

High-density cakes, such as oil-based cakes, should be baked at low temperature. Oil-based cakes need to be baked for a long time because of its fine structure. Sponge cake doesn't need to be baked for a long time, because its structure is loose. Therefore, the temperature can be raised to maintain its temperature and texture;

5, oven load

When the load of the oven reaches its peak, its temperature will drop the fastest. The temperature of the oven can be raised by 5~ 10℃, but it can be lowered when the load is low, so the temperature should be lowered by 5~ 10℃.

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Baidu Encyclopedia-Oven