What is the working mechanism of a microwave oven? Why does the red stuff heat up so quickly when yo

As the name suggests, a microwave oven is a microwave that uses microwaves to cook rice and cook vegetables. Microwaves are a type of electromagnetic wave. The energy of this electromagnetic wave is not only much greater than the usual radio waves, but it is also very large"Personality"：

Microwaves reflect as soon as they hit metal, and metal has no way to absorb or conduct it; Microwaves can pass through insulating materials such as glass, ceramics, plastics, etc., but do not consume energy; In the case of food containing water, not only can it not be transmitted by microwaves, but its energy will be absorbed.

Microwave ovens are made using these properties of microwaves. The shell of the microwave oven is made of metal materials such as stainless steel, which can block the microwave from escaping from the furnace so as not to affect people's health. Food containers are made of insulating material.

The heart of a microwave oven is the magnetron. This tube, called a magnetron, is a microwave generator that produces microwaves that vibrate at a frequency of 100 million vibrations per second. This kind of microwave, which is invisible to the naked eye, can penetrate the food up to 5cm deep, and make the water molecules in the food also move with it, and the vigorous movement produces a large amount of heat energy, so the food"Cook"Cooked.

This is how microwave heating works. When cooking food on a regular stovetop, the heat always gradually enters the inside of the food from the outside of the food. In the microwave, the heat goes directly into the food, so the cooking speed is 4 to 10 times faster than other stoves, and the heat efficiency is as high as 80%.

At present, the thermal efficiency of various other stoves cannot be compared to it.

Microwave ovens, on the other hand, maintain the vitamins and natural flavors of food well due to the short cooking time. For example, boiling green peas in the microwave can make almost no loss of vitamin C at all. In addition, microwaves can also disinfect and sterilize.

It has nothing to do with color! ~

How does a microwave oven heat food?

Many of the non-metallic kitchen utensils commonly used in the household can be used for microwave cooking, such as ceramic plates, ceramic bowls, etc. If you're unsure about whether your non-metallic kitchen utensils are microwave-safe, check them by putting them in the microwave (being careful not to fill them with water or anything else) and heating them on "high heat" for 1 minute.

Those that cannot be heated in the microwave are: metal utensils. Metal containers such as aluminum pots, enamel pots, and stainless steel pots cannot be penetrated by microwaves, and ignition will occur on the inner wall of the furnace when it touches metal, so they cannot be used.

Note that it is also easy to cause damage to the microwave oven when using metal utensils.

Lacquerware. Do not use the lacquer on the lacquerware as it may peel off and melt after being heated, resulting in harmful substances, and the container may also crack.

Plastic containers that are not heat-resistant. Ordinary plastic containers have poor heat resistance and cannot be used as microwave cooking utensils.

Grass, willow, wood, bamboo, paper products. These containers can be used when heated for a short period of time, but when heated for a long time, the container may burn, so do not use it.

The microwave oven is very convenient to use, can make a lot of food, can bake potatoes and make cakes, it seems to be omnipotent, but friends microwave oven also has its own difficulties, some things should not be put in.

You can't use paper, it will burn. No, as long as it is non-metal-free ceramic, there are also plastic bowls for microwave ovens. Because there is grease.

Heating principle: 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 takes certain measures to make this microwave electric field distributed as evenly as possible in the furnace cavity, puts the food into the microwave electric field, and controls its cooking time and microwave electric field intensity by the control center to carry out various cooking processes.

Microwave is an electromagnetic wave with a wavelength between 1-1000mm, the working frequency of household microwave ovens is generally 2350mhz, microwave has penetration, thermalism, reflectivity, the 5cm said upstairs is inaccurate, generally speaking, penetrating meat food is 3-5cm, microwave will make the molecular structure of food change when penetrating food and other items, change the molecular polarity of food, and make molecules rub against each other to generate heat, so the microwave oven is heated from the inside out.

And some items themselves do not absorb microwaves, such as ceramics, plastics, glass, which should be related to their molecular structure.

Microwave ovens, invisible to the naked eye, can penetrate food up to 5cm deep, and make the water molecules in the food also move, and the vigorous movement produces a large amount of heat energy, so the food"Cook"Cooked. This is how microwave heating works, not from the inside out!

Microwave is an electromagnetic wave with a wavelength between 1-1000mm, which is used in household microwave ovens.

Operating frequency. Generally at 2350mhz, microwave has penetration, thermalism, reflectivity, liquid upstairs Mori buried envy said that 5cm is inaccurate, generally speaking, penetration.

Meat food. It is 3-5cm, and when the microwave penetrates food and other items, it will cause the molecular structure of the food to change, changing the food.

Molecular polarity. so that the molecules are interother.

Friction generates heat. So the microwave is heated from the inside out.

And some items themselves do not absorb microwaves, such as:

Ceramics. Plastics.

Glass, it should have something to do with the structure of his split beat.