Yes? 1. It is recommended that you empty the newly purchased oven before using it for the first time. This is to burn off a layer of protective oil that is applied to the heating tube before the oven leaves the factory. Adjust the temperature of the upper and lower tubes of the oven to the highest temperature and let it cook for about 15 minutes. It is normal for the oven to emit smoke and smell during the empty burning process. It can be used normally after burning. 2. During the heating process of the oven, the heating tube will turn red and the oven temperature will rise. When the oven temperature rises to the set temperature, the heating tube stops working and turns black. When the temperature in the oven gradually drops to a certain range, the heating tube will reheat. That is, while the heating tube lights up and turns off, the temperature of the oven always remains within the set range.

3. When the oven is heating, it will occasionally make a "bang" sound. Normally, this is the sound caused by the thermal expansion of the oven shell or internal components. It usually occurs during the preheating process. When the temperature It will stop ringing after it stabilizes. Don't worry. ? 4. The temperature of household ovens varies. The temperature in the recipe is for reference only and needs to be adjusted according to the actual conditions of your own oven. In addition, the quantity and thickness of the food baked at one time will affect the baking time.

When purchasing a household electric oven, you should pay attention to the following points: ?1. For an electric oven with automatic temperature control, the oven temperature should be adjustable within the range of 100 to 250°C, and the controlled temperature error Less than ±10%. 2. For electric ovens with automatic timing control, the control time should be continuously adjustable from 0 to 45 minutes, and the travel time error should be less than ±10%. 3. The time for the inner cavity temperature to rise from room temperature to 200°C shall not exceed 15 minutes. ? 4. The thermal efficiency of the electric oven is greater than 60%. ?5. The power deviation is less than +5% and -10%. 6. The chrome-plated layer of the inner cavity should be solid, stainless and bright; the enamel of the baking pan should be heat-resistant and firm; the chrome-plated layer of the grill mesh should be bright and smooth. 7. The working life of the heater is not less than 1000h; the opening and closing life of the furnace door is more than 5000 times.

The specific steps for choosing a household electric oven are as follows: ?1. Check the appearance? The baking paint of the box is smooth and thick without peeling; the chrome plating layer of the inner cavity and grill mesh is bright, smooth and without peeling; the oven door is open and closed freely. The grid is easy to disassemble and assemble; the heater is firmly installed and can be pulled out with appropriate force. 2. Power-on test: Turn on the power, turn the transfer switch to the upper heater power-on position, the upper heating light will light up, and after 3 minutes, the temperature should rise. Then move the transfer switch to the power-on position of the lower heater, the corresponding indicator light will light up, and after a few minutes, the temperature will rise. Finally, put the switch in the fully on position, set the box temperature control value to 200°C, and require the temperature to rise to 200°C within 15 minutes. 3. Timing inspection? For electric ovens with timers, you should check whether the timing time is accurate. 4. Constant temperature detection: Test the fixed-point constant temperature performance at 100℃ and 250℃. ?5. Other inspections: Check whether the furnace door is tight and pay attention to whether the glass is smooth and bright. The operation of each function knob should be flexible and easy. Also check whether the electric oven’s spare parts such as baking pans, baking grids, and baking forks are complete.

Power-on test?

First check whether the indicator light is on, change the position of the power selection switch, and observe whether the upper and lower heating elements are working normally.

Constant temperature performance check

You can adjust the temperature adjustment button to 200 degrees and work the two tubes at the same time for about 20 minutes. The temperature inside the oven should reach 200 degrees. The oven will then automatically power off and the indicator light will go out. If it meets the above requirements, it means that its constant temperature performance is good, otherwise it is abnormal.