1. Put rice and water into a special container for microwave oven. Check the label on the container to make sure it can be used for microwave heating. If in doubt, you'd better change the container just in case. Put rice and water in the container.

2. Be sure to use a bigger container, because rice will swell during cooking, and a bigger container can prevent water from overflowing because of boiling.

Extended data:

From the point of view of electron optics and physics, microwave electromagnetic spectrum has the following important characteristics different from other bands:

1, photometry and acoustics

The wavelength of microwave is very short, much smaller than the size of ordinary objects on the earth, or in the same order of magnitude, such as airplanes, ships, cars, tanks, rockets, missiles, buildings and so on. This makes the characteristics of microwave similar to geometric optics, which is called phototropism. Therefore, using microwave to work can reduce the circuit size.

2. Infiltration

When microwave irradiates the medium of an object, it can penetrate the ionosphere and become a "cosmic window" for human beings to explore outer space. Microwave can penetrate clouds, rain, vegetation, snow and the earth's surface, and has the ability to work all day and all day, which is an important band of remote sensing technology.

References:

Baidu encyclopedia-microwave oven