First of all, it is necessary to make clear what the oven is for. If it is only used to roast chicken wings, peanuts, melon seeds and other small things, of course, there is no need for an oven with too large a volume, which is small and cheap enough to cope with. If you want to roast the whole chicken, you should choose an oven with a rotating shaft in the middle of the oven, which can be heated conveniently and evenly. If you want to bake a bigger birthday cake, of course you need a bigger oven.

Second, different types should be seen clearly.

There are many types of ovens on the market now, such as mechanical, electronic, time-controlled and time-adjustable temperature, and three-control automatic electric ovens. The so-called three-control oven can adjust temperature, time and change power. This kind of electric oven is very convenient to use, but the price will be relatively high. Everyone must choose to buy an oven that suits them according to their own economic ability.

Third, the size and power should be clear.

The specifications of electric ovens are divided by power, which generally ranges from 500 to 2000 watts. In order to meet the basic baking requirements, at least 900 watts should be selected. High-power electric ovens have the advantages of fast temperature rise, less heat loss and low power consumption, especially three-control electric ovens, and it is better to buy high power. But when buying an oven, you should also consider the endurance of the wires in your home. Don't blindly pursue high power, but you can't work normally when you get home.

Fourth, pay attention to some details

In the power-on test, plug the selected oven into the power supply, first check whether the power indicator light is on, and then test whether the oven heats up quickly enough. The oven needs to be preheated before baking food, so the faster the preheating time, the more energy will be saved. The oven with good quality only needs1-2 seconds, while the oven with poor quality needs 7-8 seconds. Finally, it is necessary to test whether the upper and lower heating rods work normally.