No harm. If you often use a microwave oven to heat dishes, there will be no problem in eating these meals. However, the microwave oven itself emits radiation during use, and long-term use will cause certain harm to the body.

A microwave oven is a cooking appliance that uses food to absorb microwave energy in the microwave field to heat itself. The microwave generated by the microwave generator in the microwave oven establishes a microwave electric field in the microwave oven cavity, and certain measures are taken to make this microwave electric field evenly distributed in the oven cavity. Food is placed into the microwave electric field, and the cooking time is controlled by the control center. and microwave electric field strength to perform various cooking processes.

In layman’s terms, microwave is a high-frequency electromagnetic wave that does not generate heat itself. Microwaves are everywhere in the universe and nature. However, there are natural microwaves. Because they are dispersed and not concentrated, they cannot be Heating food.

The microwave oven uses its internal magnetron to convert electrical energy into microwaves, which penetrate the food at an oscillation frequency of 2450MHZ. When the microwaves are absorbed by the food, the polar molecules (such as water and fat) in the food , protein, sugar, etc.) are attracted to rapidly oscillate at a rate of 2.45 billion times per second. The macroscopic manifestation of this oscillation is that the food is heated.

The principle of microwave heating is simply that when microwaves radiate to food, the food always contains a certain amount of water, and water is composed of polar molecules (positive and negative charge centers of molecules, even if The orientation of this polar molecule will change with the microwave field. Due to this movement of polar molecules of water in food.

As well as the interaction between adjacent molecules, a phenomenon similar to friction is produced, which increases the temperature of the water. Therefore, the temperature of the food also rises. Food heated by microwaves is also heated internally, so that the entire object is heated evenly and the temperature rises quickly. It heats food 5cm deep into the food at a frequency of 2.45 billion times per second, accelerating the movement of molecules.

Because microwaves are a form of radiation, there is a misconception that they can cause cancer. In fact, microwaves are a type of electromagnetic wave, which is essentially the same thing as the radio waves, infrared rays, and visible light used in radios and telegraphs. The only difference between them is the frequency. The frequency of microwaves is higher than radio waves and lower than infrared rays and visible light. Electromagnetic waves in this frequency band do not cause cancer.