An electric oven, also known as an electric oven, is an electric cooker that uses the radiant heat generated by electric heating elements to bake foods. The electric oven can be used to bake bread, cakes, pancakes, chicken, duck, goose, pork ribs, pork roast, and peanuts, as well as western dishes such as burdock and macaroni. The electric oven is characterized by simple structure, cleanliness, and easy use and maintenance. Although not as efficient as a microwave oven, the price is low, and the surface of the baked food is yellowish, with a good color and aroma. This is not a microwave oven.

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Household electric ovens are roughly classified into three types: simple type, normal type, and high-grade type.

A simple electric oven

This is a product that was put into the market at an early stage. Its structure is a sheet-shaped far-infrared radiation heating element or electric heating wire in a shell made of a thin metal plate, and a sliding door made of a double-layer thin plate is directly connected to the 220V power supply. Power can not be adjusted, the temperature can not be controlled, baking food can only be based on the experience of time, or from time to time through the power to master the heat, inconvenient to use, not well grasped, baked food is not a raw or coke. At present, such products have been gradually phased out.

Second, ordinary type electric oven

It is a common product on the market today, including automatic thermostat type, automatic timing type and automatic thermostat timing type products. This type of electric oven is mainly composed of a box body, a cavity, a heating element, a temperature controller, a timer, and power supply leads, a baking pan, a grilling net, a handle fork and the like. The outer surface of the shell is painted with colored amino baking varnish, and the inner cavity is removable. The grids on both sides can adjust the height and position of the baking tray and roasting net as required. Most of the furnace door uses a spring structure with a tempered glass transparent window that is resistant to high temperatures. The heating element has a metal tubular heating element, and also has a milky quartz glass heating element and a sheet-like far-infrared radiation heating element. The temperature controller on the panel is the control system of the electric oven, and its operating status is indicated by red and green indicators. The temperature controller uses bimetal temperature control elements and the timer is generally mechanical. Some electric ovens also have power switchers. The surface fire and bottom fire can be separately controlled to obtain different heat conditions.

Third, advanced type electric oven

This kind of advanced electric oven is still less seen in the market. It is different from the common type of electric oven: the structure is more rigorous, the appearance is more beautiful, and the function is more complete. The outer shell is stamped and made of stainless steel sheet, adopting a three-layer double-chamber structure, so that the shell temperature is greatly reduced. In terms of control, in addition to the function of a common type of electric oven, it is also provided with a low temperature temperature of only 36 °C, dedicated to Yeast fermentation. Equipped with a “sweet” and “weak” switch, it is used to control the temperature fluctuation range and to flexibly control the crispiness of baked goods. In addition, the timer can emit a whistle sound in time to reflect the baking results.

The electric oven can be divided into 500, 600, 750, 950, 1200, 1500W and other specifications according to its power. The domestic electric ovens sold in the domestic market are generally 500 to 750W.

When purchasing an electric oven, pay attention to the following points:

1, with automatic thermostat control of the electric oven, the furnace temperature should be able to be adjustable in the range of 100 to 250 °C, the temperature error control is less than ± 10%.

2, with automatic timing control of the electric oven, control time should be able to continuously adjustable within 0-45min, travel time error is less than ± 10%.

3, the cavity temperature from room temperature to 200 °C time does not exceed 15min.

4, the electric oven thermal efficiency is greater than 60%.

5, power deviation is less than +5%, -10%.

6, the inner chrome plating layer should be solid, stainless, bright; baking pan enamel should be heat-resistant solid; grilling chrome plating layer should be bright and smooth.

7. The working life of the heater is not less than 1000h; the door opening and closing life is more than 5,000 times.

The steps to purchase an electric oven are as follows:

1, check the appearance

The cabinet baking paint is smooth and thick without peeling; the inner cavity, grilling net chrome plating layer is bright, smooth without peeling; the door can be opened and closed freely. The grid is easy to disassemble and install; the heater is firmly installed and can be unplugged with proper force.

2, power test

Turn on the power, switch the switch to the upper heater energizing position, the upper heating lamp lights, after 3min, there should be temperature rise. Then switch the switch to the lower heater power position, the corresponding indicator light, after a few minutes, required temperature rise. Finally, the switch is placed in the fully on position and the tank temperature control value is set at 200° C. The temperature is required to rise to 200° C. within 15 minutes.

3, timing check

For timers with electric ovens, check that the timing is accurate.

4, temperature check

Tested constant temperature performance at 100°C and 250°C.

5, other checks

To check the tightness of the door, and pay attention to whether the glass is bright and clean. Each function knob operation should be flexible and comfortable. Also check whether the baking pan, grilling net, grilling fork and other spare parts of the electric oven are complete.

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