Cook rice, noodles, soup, etc.

A rice cooker is also called an electric cooker or a rice cooker. It is a cooker that converts electrical energy into internal energy. It is easy to use, clean and hygienic, and has multiple operating functions such as steaming, boiling, stewing, and simmering food. Common rice cookers are divided into three types: automatic heat preservation type, timed heat preservation type, and new microcomputer-controlled type. Now a daily household appliance, the invention of the rice cooker has reduced the time many families spend cooking rice. The world's first rice cooker was invented in 1950 by the Tokyo Communications Engineering Company of Japan's Ibuka.

Rice cooker principle:

The structure of an ordinary rice cooker: An ordinary rice cooker is mainly composed of a heating plate, a temperature limiter, a heat preservation switch, a lever switch, a current-limiting resistor, an indicator light, a socket, etc.

When the rice is cooked, the water in the rice cooker will evaporate and change from liquid to gas. When an object changes from liquid to gaseous state, it absorbs a certain amount of energy, which is called "latent heat". At this time, the temperature will remain at the boiling point. After the water evaporates, the temperature in the rice cooker will rise again. The rice cooker has a thermometer and electronic parts inside. When it detects that the temperature rises again, it will automatically stop cooking.

Purchasing rice cookers:

1. Choose some excellent brands of products according to your own financial strength.

2. Select function.

You can choose a rice cooker that integrates multiple functions, which not only saves money, but also makes effective use of home space. Rice cookers not only have the function of cooking rice, but are also good at making porridge and soup. They can also make cakes. There are also some pressure cookers that can cook chicken without water.

3. Consider its power consumption.

There are many rice cookers with purple sand linings in stores. Although rice cookers with this kind of lining have certain advantages in cooking soup and porridge, they will not produce any heat during the cooking and heating process. Hazardous substances, purple clay is also rich in various minerals that are beneficial to human health. However, compared with the metal liner commonly used in rice cookers, the purple clay liner takes longer to cook and consumes relatively more power.

4. Security issues.

When purchasing, be sure to check whether the product has the 3C mark. The plug and power cord should also have this mark. Then check the product manual. The formal manual should have the product name, trademark, model, and rating printed on it. The voltage, frequency, power, manufacturer or seller, the instruction manual should be clearly printed, and the manufacturer, address, phone number, and maintenance matters should be clearly marked. It should also be equipped with a warranty card, packing accessories list, factory certificate, etc. In addition, check whether the power cord is double-insulated and whether the core is greater than or equal to 0.75 square millimeters.

5. Appearance.

Observe from different angles whether there are scratches, deformations, etc. on the exterior, whether the joints of each component are smooth, and whether the coating of the inner tank is uniform.

6. Are the buttons sensitive?

Touch the function button up and down several times with your hand to see if the magnetic steel is well engaged. Under normal circumstances, press it down. There will be a crisp "click" sound when you pull it out. Finally, turn on the power and press Press the function selection button to see if the indicator light is on, and touch the heating plate to feel whether it is hot.