Preheating depends on the temperature you bake, for example, we bake cakes, 150 degrees, then open the temperature between 160 to 180 degrees preheating, because the door will open the temperature will fall, generally ten minutes. Baked sweet potatoes, then be sure to dry the surface of the water, the temperature depends on the size of the sweet potatoes, 200 degrees or 220 degrees can be.

Methods: ? First plug in the electric oven power , open the electric oven switch controller. Then check whether the temperature control light is on, light up that the power has been connected and began to heat. Then wait for about ten minutes, and finally check whether the power light is off, off means that the temperature you want to control has been reached.

The main role of the oven preheating:

1, so that the food quickly shaped, for example, we bake cake, if we let the temperature rise slowly to the cake will be cooked, the cake flow is very forgiving in the surface is not yet dry outward flow, baked after the shape is not as beautiful as we intended.

2. When the temperature reaches the intended temperature, the baked food is more crispy and more flavorful.

3, shorten the baking time, energy saving and convenient.

Expanded Information:

There are two types of home electric ovens: small countertop ovens and built-in ovens. Benchtop electric oven benefit is very flexible, you can choose different configurations of the oven as needed, due to the quality, configuration of the different price points from a few hundred dollars to a few thousand dollars ranging from foreign brands are usually more expensive, while the domestic products cost-effective is relatively high. Many foreign brands are also in the domestic OEM OEM. It is recommended that you choose a model with a "non-oil liner" for long-term cleanliness.

The electric oven consists of a box, box door, electric heating elements, temperature control and timing devices.

①The box is made of thin steel plate, generally double-layer material.

②The door is equipped with high-temperature tempered glass, polygonal network, in order to maintain the temperature inside the box and observe the food baking.

③ electric heating element commonly used in the appearance of coated with far-infrared radiation material of the metal tube type. General electric oven have two electric heating elements, some also installed in the box side one or two.

④Temperature-control element mainly bimetallic has been gradually promoted. ⑤ Timing device commonly used clockwork and electric, the former timing range within 1 hour, the latter up to several hours. Some electric ovens are also equipped with a food tray, driven by a micro-motor, low-speed rotation, so that the food baked more evenly. early 1980s computerized electric ovens, the use of temperature sensors, weight sensors, humidity sensors and microprocessors, according to the pre-input baking program, automatically select the best baking mode, so that the baking process is optimized and automated.

According to the electric heating element used is divided into ordinary type and far-infrared type; according to the presence or absence of self-cleaning function (can automatically turn the soup inside the box dirt into a light dust can be easily wiped off the function) is divided into self-cleaning and non-self-cleaning type.

The heating element used in the electric oven can be roughly divided into three categories: one is the selection of a far-infrared tube and a quartz heating tube of the electric oven, it is all the electric oven in the lower grade type. However, the basic electric baking function can still be realized, only the baking speed will be relatively slow. Therefore, it is more suitable for families with average financial situation and need to buy an electric oven, as well as single people.

The other category is the electric oven with two far-infrared tubes and one quartz heating tube, which is characterized by a relatively fast heating speed. However, compared with the former, the price is slightly higher, usually a couple hundred dollars more expensive. There is also a category is in the annex with a UV heating tube, can be bacterial sterilization, higher degree of hygiene, and heating speed, so the price is more expensive, it is suitable for consumers with good economic conditions.

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