Microwave Thawing Technology is a form of internal heating and is a type of electric defrosting.
The principle of the Industrial Microwave Defrosting Equipment is that electromagnetic waves act on the polar groups of high and low molecules in the frozen product, especially on water molecules. It causes the polar molecules to change their orientation in the high-frequency electromagnetic field, which causes the molecules to rotate, vibrate, collide and rub against each other, generating heat. The higher the frequency of the electromagnetic wave, the greater the collision and friction, the more heat is generated, and the faster the thawing.
The principle of microwave thawing in the food industry refers to the method of thawing frozen food under the action of electromagnetic waves of a certain frequency. Traditional frozen food thawing equipment is performed at room temperature or in a heated room (or hot water).
Traditional thawing machine is due to the fact that frozen food has higher thermal conductivity than non-frozen food, and the heat transfer during the thawing process is carried out from the surface to the inside.
When the thawing temperature is constant, the outer layer of food thaws thermally slower than the inner layer, and the thawing time is long, which is likely to cause the loss of juice and affect the quality of the thawed food.
915mhz industrial microwave defrosting equipment utilizes the strong penetrating power of microwave energy at low temperature and the dielectric characteristics of ice. In industry, microwaves are used for thawing and temperature adjustment of frozen meat, which can obtain fresh meat-like quality and is conducive to Better utilization of raw meat and further processing after thawing.
Microwave thawing equipment is the most ideal thawing method for meat products, especially beef and mutton, frozen pork products, frozen chicken products and frozen seafood products. The color and taste of thawed products are exactly the same as before thawing, which will not cause any damage or loss to the products. However, due to the different dielectric constants of ice and water, microwave thawing equipment must be controlled below 0℃. That means microwave-defrosted meat is suitable for any cut deep production, not directly from frozen to chilled meat.
Microwave thawing equipment frequency adopts 915MHz microwave generator, whose penetration is far more than 2450MHz microwave generator,single microwave generator is 20KW, equipment can design 20KW~100KW, if applied in the thawed material reprocessing, after the thawing temperature to keep -5 ℃~1℃, thawing output can reach 2500KG/H.
1. Only consume electric energy, no emission, environmental protection and pollution-free;
2.10min fast thawing, high efficiency;
3. No water, no discoloration, no flesh damage after thawing;
4. Microwave can penetrate thawing, not restricted by the shape of the thawed product;
5. Cover small area, convenient installation;
6. There is no need for consumables to operate the equipment, low operation cost .
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