Quick-frozen food, as its name implies, is to quickly freeze food at low temperature, so that the temperature can be quickly frozen into crystals within 30 minutes, and then keep this temperature during the storage and transportation of food, which can ensure that the tissue and cell structure of these foods will not change due to the change of weather temperature, and the activities of microorganisms and enzymes in food will be temporarily inhibited due to low temperature. Using low-temperature quick freezing can prolong the shelf life of these foods, which can be stored for 300~600 days in general.
Quick-frozen food can preserve the nutritional value of food. You think, a food has been quickly frozen by low temperature technology before it goes bad, and even the mold and active substances in the food have been suppressed, which means that the active substances in the food can't react chemically with the active substances in the air, and there is no way to go bad on their own. Therefore, quick freezing technology can not only preserve the flavor of food, but also preserve the nutrition of food. And some microorganisms will die because the temperature is too low, so frozen food is absolutely safe.
Why do people think that frozen food is unhealthy and nutritious? Because quick-frozen food has achieved the purpose of long-term preservation, many people think that since it can be kept fresh for a long time, preservatives must be added. Too many preservatives will bring health problems to the body, so people naturally think that the reason why frozen foods can be preserved for a long time is the role of preservatives, but it is not that they simply don't understand the principle why frozen foods can be preserved for so long.
Moreover, frozen food is not only preserved at low temperature, but also keeps the transportation environment below 18℃ even during transportation. Of course, for example, if you buy seafood such as fish and shrimp online, even if you fill the shopping box with ice packs for refrigeration, it will take a day or two to reach your place, which will definitely cause a lot of losses in transit, but before you buy it, if you make a request,