Is ice crystal zone and soft freezing metaphysics? Know that you won't make mistakes when buying refrigerators

Everyone is buying Refrigerator Yes, we often hear such unheard of terms as ice crystal belt and soft freezing. I believe everyone will be confused when they see this. Are these high-end technologies or metaphysics? Today, let's briefly reveal the secret for everyone. Recently, there are some friends who have access to refrigerators and can collect them.

The ice crystal zone is the abbreviation of the largest ice crystal formation zone

When the central temperature of most foods drops from - 1 ℃ to - 5 ℃, nearly 80% of the water can be frozen into ice. This temperature range is called the maximum ice crystal formation zone. Most ice crystals are formed at - 1~- 5 ℃, and the maximum ice crystal formation zone is the most important temperature range to ensure the quality of frozen food; The formation mode of ice crystals in the maximum ice crystal formation zone has a greater impact on the quality of food. The shorter the time to pass through the maximum ice crystal formation zone during freezing, the better the quality. Some low-temperature tolerant microorganisms can still grow and reproduce within the temperature range of the maximum ice crystal formation zone. But there are a lot of food freezing point It is lower than - 1 ℃, so the temperature range of the maximum ice crystal formation zone is also different.

Therefore, in order to preserve the freshness and nutrition of food, a quick freezing method is adopted to lock the food nutrition to the maximum extent and keep the taste fresh through the maximum ice crystal formation zone in the shortest time.

What is soft freezing?

At present, some refrigerators are divided into soft freezing areas, which literally means freezing food but not freezing it hard, so that you can cut it out of the refrigerator without waiting for a long thaw.

The written explanation of the standard is that the soft freezing function of the refrigerator is to change the middle door into a soft freezing temperature zone with - 7 ℃. In this way, the food can be stored in soft freeze to ensure that the nutrition of the food will not be lost, and the user will not freeze after taking out the food before cooking.

Traditional refrigerators generally have only two temperature zones: the refrigeration zone is generally 2~6 ℃, and the refrigeration zone is below - 10 ℃. Fish storage area can be set at 0 ℃; Beer tastes better at about 4 ℃; The optimal storage temperature of eggs is 3 ℃; 4 ℃ for milk; 5 ℃ for vegetables; Fruit 6 ℃; Ice cream is minus 7 ℃. Therefore, the ideal fresh-keeping effect cannot be achieved only by "refrigeration+freezing" to provide two or three temperatures. The emergence of soft freezing technology just makes up for the vacant temperature zone of 2~- 10 ℃ in ordinary refrigerators.

At present, the refrigerator with "007" in the market is actually a refrigerator with soft freezing function. And "007" means: "0" jet lag thaws, "0" nutrition is lost, and "- 7" degree is cut immediately.

The frozen meat can't be cut through, and it melts slowly. If you put it directly into the cold storage area and worry about the lack of nutrition and hygiene, it can be stored at minus 7 ℃ in the middle layer. The meat stored here is neither soft nor hard, and it looks like cutting tofu. Therefore, if there is a need to buy refrigerators in the future, it is recommended to try to choose one with soft freezing function, which is more convenient for our life.

Speaking of which, "ice crystal belt" and "soft freezing" are two unfamiliar words. I believe you have more or less understood them. They are not metaphysics, but science.

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