Can liquid nitrogen frozen food be eaten?
Editor:adminClick：
Time:2019-09-12 09:48
Liquid nitrogen is inert, colorless, odorless, non-corrosive, non-flammable and extremely low temperature. Nitrogen makes up most of the atmosphere (78.03% by volume and 75.5% by weight). Nitrogen is inert and does not support combustion; however, it is not a necessary element for life.
So liquid nitrogen is supposed to be non-toxic, but it's not cheap. It's about 850.00/cubic (gas, not liquid). It's OK to use a refrigerator for frozen food. It's too wasteful to use. Besides, it's also expensive to have a device.
In addition, the above refers to the high purity liquid nitrogen, if the general purity is not enough, frozen food may cause pollution. Direct contact with food will not produce toxic substances, but also can not eat, are frozen. Liquid nitrogen freezing is generally used in medicine and scientific research, but liquid nitrogen freezing food is seldom used because of its high cost, which is far beyond the food itself. In addition, liquid nitrogen temperature to minus 195.8 degrees Celsius, slightly neglected, is a serious frostbite. It's better not to use it.
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