The refrigerator in the supermarket generally has a cold room and a freezer, and some will have a greenhouse. If we want to properly preserve food to ensure that it is fresh, does not deteriorate, does not change taste, we must first understand the temperature of each layer of the supermarket freezer, and then choose how to store food in layers.

For the wide variable temperature layer in the freezer, the temperature adjustment range is about 10 degrees Celsius to -12 degrees Celsius. Wide intelligent temperature change, its range can be set between refrigeration, zero degree Celsius preservation, soft freezing temperature zone, deep freezing. This variable temperature storage allows food to be stored longer and people do not worry about short-term spoilage.

-7 degrees Celsius (soft freeze), this temperature is suitable for storing meat that is ready to eat. Because the meat is preserved at this temperature, it is fresh, not frozen, nutritious and soft coexist, and it is convenient for people to cut when they use it, which not only eliminates the trouble of defrosting, but also easy to process ingredients. If the temperature adjustment range of the freezer is relatively small, we will not be too convenient to refrigerate food, then we need to choose the temperature according to different meat characteristics when refrigerating (freezing), such as choosing -4 degrees frozen chicken, -6 degrees frozen fish, and -7 degrees frozen beef.

The temperature of the supermarket freezer is generally between 0 and 10 degrees Celsius, and the humidity of this interval is also relatively high, which is more suitable for placing vegetables and fruits. For most vegetables, in order to keep fresh for a longer time, it is best not to clean when we buy them, just dispose of the outer rotted part, and then wrap it with newspaper or white paper, and then put it into a plastic bag to save it. The reason why paper wrapped vegetables is to use the paper to absorb the moisture of the vegetables themselves; Plastic bags, on the other hand, keep out moisture. This double-layer protection will not allow the rapid loss of nutrients, so that the preservation time increases. In the past, people always washed vegetables before putting them in the supermarket freezer, in this case, if the vegetables are still stored in the freezer within two (three) days, the leaves will turn yellow and rot.

The average temperature of the freezer is below -18 degrees Celsius, which is high enough to freeze food and lock in moisture, so seafood (including shellfish), meat, and food that is not eaten immediately can be stored at this temperature. On weekdays, we should pay attention to cleaning the supermarket freezer regularly. The purchased ingredients can be filled separately through the storage bag, and the freshness of the food can be extended with the crisper box, storage bag, etc. But remember not to come back and forth to thaw, in addition to the meat to eat that night, the rest can be put directly into the frozen layer.

In addition, once iron cans such as canned fish are opened, you should replace the utensils, glass bottles or crisper boxes are a good choice, so as to avoid food oxidation and deterioration; Sauces and bean sauces should also be refrigerated in the freezer after opening to ensure the safety of subsequent consumption. For this type of food, we usually choose a refrigerated layer of 3 degrees Celsius.

 

https://www.artrefrigeration.com/freezer-glass-door-for-walk-in-freezer.html

 

https://www.artrefrigeration.com/products