Hello, Beijing Liquid Nitrogen Tank Network (www.yedanguan111.com) will answer your questions:

Liquid nitrogen tanks are used for active preservation of animal semen, biological samples, cryogenic treatment of metal materials, cryogenic assembly of precision parts, refrigeration in medical and health industries, refrigeration in medical operations, and beauty fields.

In addition, liquid nitrogen tanks can also be used for stage smoke effect. Generally, portable liquid nitrogen tanks of 11 liters or less are used, which are convenient to carry and easy to operate. Because liquid nitrogen belongs to the low temperature of MINUS 111 degrees, it is released into the air and vaporized instantly when it meets heat, so as to achieve the effect of smoke.

The liquid nitrogen tank can also be used in catering industry. When liquid nitrogen is poured into the surface of a beaten egg, the color of the yolk soon becomes lighter, and at first glance, it is thought that it is all cooked egg white. But this discolored yolk is not cooked, but the structure of protein has changed at low temperature. Of course, this egg yolk is not edible. That is to say, using liquid nitrogen in the catering industry can make more beautiful dishes.