Microwave oven

is a household appliance intended for the quick preparation or quick heating of food, as well as for defrosting food.

Unlike other devices (for example, an oven or a Russian oven), the heating of the products in the microwave oven occurs not on the surface, but over the entire volume. This significantly reduces cooking time. Each microwave oven contains a magnetron in which electrons are charged from electromagnetic fields in such a way as to produce microwave radiation equal to 2,450 Megahertz (MHz) or 2.45 GHz (GHz). It is microwave radiation and interacts with food molecules.


Microwaves “bomb” the food molecules, causing the polar molecules to rotate at a frequency of millions of times per second, creating molecular friction, which heats the food. This friction causes considerable damage to food molecules, tearing or deforming them. In the scientific world, this process is called structural isomerism.

Despite the fact that the history of microwave ovens is long enough (the American engineer P.S. Spencer invented a microwave oven, he received a patent for the use of microwaves in cooking in 1945, and in 1949, his first microwave oven for rapid defrosting of strategic stocks of products), in the minds of the mass consumer there are still a lot of myths associated with these so popular household appliances.

A microwave oven is a source of radiation harmful to health.

This is not true. In the instruction accompanying any furnace, it can be read that microwaves – a type of energy similar to electromagnetic waves, which are used in radio and television broadcasting, are present in the sunlight. So these waves constantly surround us from all sides. The microwaves generated by the magnetron (or inverter in some microwave models) (ie waves at a frequency of 2,450 MHz) enter the chamber through openings in the walls of the furnace. When penetrated into food, energy is completely converted into heat due to the action of microwaves on the molecules of water present in the products. Fluctuations of molecules cause internal friction, therefore, the temperature of the prepared dish rises. There is no “radiation” from ready-made products. From loss of waves during operation, the furnace is reliably protected (the metal case shields the waves, a frequent metal mesh located on the glass window of the oven door, also serves as a reliable obstacle for microwaves). Leakage of microwaves can occur only if the sealing surfaces between the door and the oven are heavily soiled or if the furnace is damaged. Therefore it is important not to drop the oven and keep it clean.

You can put your hand or head in a working oven and “pick up” microwaves.

No, it is not possible – all furnaces have blocking devices that interfere with the open door.

The microwave oven is only suitable for defrosting and heating the food.

Indeed, when there is no time and energy to stand at the stove and watch the food (not to burn, evenly warmed up, not stuck on the edges and burnt), the microwave oven will gently thaw the foodstuffs stored in advance, or warm up the already prepared dish, preserving the consistency, and taste qualities. However, it should be remembered that a modern microwave oven makes it possible to cook porridge, put out meat, cook shish kebabs, bake cakes for a cake, cook fish and chicken, dishes from vegetables, etc. The furnaces significantly expand the additional modes: grill, convection, combined mode, as well as the functions enclosed in it. There are also a lot of recipes using which you can learn to cook everything you want in one microwave mode.

The food from the microwave is not tasty.

Most often this opinion stems from the elementary inability to use the various modes of the microwave oven to achieve the desired taste of the prepared dishes.For example, if you use only microwave radiation, the food will look more like boiled. If you want the dish to be slightly roasted, ruddy, aromatic, with a crispy crust, it is better to use the grill. This type of heating element is also used in electric furnaces. But in combination with microwaves the grill allows you to cook evenly roasted, toasted and very mouth-watering dishes.

Microwave – for bachelors.

Not exactly the right opinion. A microwave oven equipped with automatic cooking programs (from 4-6 to 42), which relieves a person from the need to understand culinary delicacies (he chose a dish from the menu, pressed a button – and no worries) is useful not only for bachelors. She is an indispensable helper for those who do not know how to either just learn how to cook, busy moms and children, teenagers, old or sick people who simply do not have the strength to stand for a long time at the stove. It should be noted that the care of the microwave is extremely simple due to the fact that the microwave ovens are made of stainless steel or are covered with heat-resistant paint that is perfectly cleaned. Some furnaces have antibacterial coating, and some models use Easy to Clean Ceramic coating (“easy-cleaning ceramics”). It is absolutely smooth and resistant to external influences. Drops of oil and grease to such a coating do not stick, because to bring such a microwave into a perfectly clean state, it is enough just to wipe the camera with a sponge.

It is difficult to understand the operation of the microwave oven.

Mistaken, although quite common opinion. After all, the operation of the microwave is controlled by a mechanical, touch and keypad. By means of the mechanical panel, turning the knobs selects the power and cooking time of the products (indicated on the packaging of the semi-finished products) – nothing complicated. And in ovens with touch controls, in addition, the ability to automatically evaluate and set the time needed for cooking, given the type and weight of the product. Some furnaces are equipped with a display on which all manipulations are reflected, tips are given about which parameter should be set.

Microwaves are very energy intensive.

This is not true. In comparison with electric ovens, a microwave oven consumes almost half the electricity.

A special very expensive dish is needed for a microwave oven.

Indeed, the best for a microwave oven is suitable for special plastic or heat-resistant glassware. But the usual, already available utensils, will suit you. Do not use only metal plates and mugs, as well as dishes with metal trim, as well as ordinary glassware (especially crystal), which can also contain metals.

The microwave oven is extremely durable, so you can put everything that your heart desires.

This myth has long been debunked by curious adolescents, putting into the microwave a variety of objects: a light bulb (lights up and then explodes), a can of propane (explodes, spreading the stove and table to pieces), singing a toy (lights up and fades).

Metal objects are not at all dangerous to the microwave oven.

This is not true. It should be remembered that metal absorbs microwaves much better than food or liquid. As a result, the metal is heated very strongly and an electric current is produced. This current can cause a high voltage discharge that can pass from the object to the microwave housing and is quite capable of damaging the electronics of the magnetron – a device that turns the network electricity into microwaves.

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