Just like I am going to change a refrigerator for my parents, I will simply answer the questions of the subject according to some information I read on the Internet.
First of all, the topic friend said that "the refrigerator is almost as long as it can cool", which is wrong in itself. As long as the refrigerator is not broken, it can refrigerate, but the fresh-keeping effect is completely different, which is the biggest difference between 1K and 1W refrigerators.
Take my home as an example. The refrigerator my parents are using now was less than 1K when they bought it, but it will not keep fresh in a few years. Every time I want to bring some seafood specialties home, I dare not bring more. First, I can't let them go. Second, the preservation is too poor. Fresh shrimps and crabs tend to turn black and taste bad, and other meats are seafood-flavored. A friend around me spent more than 1W on a refrigerator. According to them, this will not happen to high-end refrigerators, and money will not be lost.
So, I also searched the information on the Internet. Specifically, among several refrigerators that I am optimistic about, Haier's full-space preservation attracted me. I have seen an experiment of cocktails made by them before, and the stratification of cocktails frozen for 7 days is still very clear. The report explained that this is because its freezing temperature is stable and the fluctuation is small, and the food will not be thawed repeatedly when put in, which can ensure that the nutrition will not be lost and it will be fresher to eat; The MSA of another casarte refrigerator also has a high sense of oxygen control and preservation, saying that it can achieve cell-level preservation; And a beautiful microcrystalline refrigerator. Store the meat for 7 days and take it out and you can cut it. Very convenient and practical. The prices of these refrigerators are almost the same, which one to buy 12 is more active!
In a word, 1W+ refrigerator, although expensive, uses many advanced technologies, and the fresh-keeping effect is exactly the same as that of 1K or so. And whether the food is fresh or not and how much nutrition it contains will affect your health. Therefore, you must not buy a refrigerator just because it is cheap, especially online. You must read the buyer's comments or go to the store to experience it first.