Stop, can you still open it casually?Today, a friend who I haven't seen for a long time came to my house and brought me a large piece of beef, I quickly put the meat in the refrigerator and turned on the quick-freezing function. Just then, my friend quickly stopped me. I know she used to buy a fridge for a while, so I took her advice seriously. Why can't you just open the quick freeze?My friend then explained to me why.
Try not to open the "quick freezing" of the direct cooling refrigerator
This time we met in my small apartment, which had only a tiny direct-cooling refrigerator. Friends said that although this kind of refrigerator also has a "quick-freezing" function, the principle is completely different from that of air cooling, so try not to open it.
The "quick freezing" of a direct cooling refrigerator is actually continuous refrigeration: turning the temperature control knob to the maximum is the so-called "quick freezing mode". In fact, it is not stopped, and it is refrigerated all the time.
There will be no noticeable change in the refrigeration speed during this process, but the temperature in the refrigerator will continue to drop. Since the refrigeration rate is not accelerated, the effect of flash freezing is very limited.
You touch the side wall of the refrigerator. 」
Half an hour after turning on the freeze mode, my friend asked me to touch the side wall. When I touched it, it was really different from usual. When working normally, the side walls of the refrigerator are warm, but at this point they are very hot.
The friend explainedThis means that the refrigerator compressor has not been shut down and that the interior has been cooling at full power. Correspondingly, the wear and tear on the refrigerator will also increase exponentially. If you forget to turn off the freezer, the refrigerator will always work, and there are not a few compressors that are damaged as a result. The power consumption during this period is even more impressive!
Furthermore, the freezer, the refrigerator of the direct cooling refrigerator isThe same refrigeration systemTherefore, the temperature in the refrigerator will also drop during quick freezing, and it is easy to freeze the food that is not resistant to freezing.
The best thing to do with a refrigerator like the one you use is to never turn on the "quick freeze", as if it doesn't have this function. 」
Air-cooled refrigerator "quick-frozen" according to the situation
Can the quick-freezing mode of the air-cooled refrigerator be used casually?Friend said:It depends on the quality of the refrigerator. 」
Some budget refrigerators are essentially the same as direct freezers, except that the refrigerator and freezer compartments are separated (double circulation). There is no problem of food being frozen in the refrigerator, but it is still quick-frozen by continuous cooling
The freezing rate is slow, and the temperature in the freezer will get lower and lower.
A little better refrigerator, this feature is called"Cryogenic quick-freezing".。It works in a completely different way than traditional blast freezing
After turning on cryogenic flash freezing, the cooling capacity of the refrigerator will increase instantly. For example: the wind blowing out of the freezer compartment of the refrigerator is -20 under normal circumstances, and after turning on the cryogenic quick freezing, the wind blowing out becomes -30 -40 (the better the refrigerator, the lower the air temperature of the quick-freezing air), so as to achieve the purpose of rapid freezing of food.
In general, the quick-freezing mode of an air-cooled refrigerator is much better than that of a direct-cooling refrigerator. 」
Because whether it is ordinary quick-freezing mode or cryogenic quick-freezing mode, it is automatically timed. It usually takes 30 minutes, and when the time is up, it will automatically shut down, so it will not consume too much power or damage the compressor.
Not all ingredients are suitable for flash freezing
Speaking of which, I roughly understood what my friend was trying to say:The "quick-frozen" mode of the direct cooling refrigerator should never be used;The "snap freezing" mode of an air-cooled refrigerator can be used, but it is not very useful;The "cryogenic quick-freezing" mode is what we understand as "rapid freezing".
But you can't use it like you do. 」
My friend went on to say that it would be wrong to put food that needs to be frozen in the refrigerator at room temperature like me, and turn on the blast freezer mode immediately. Because not everything can be snap-frozen:
Seafood is best suited for flash freezing, and rapid cooling helps preserve the freshness of the taste.
Meat should be used with caution, as too low a temperature will destroy the internal fibers and change the taste of the food. Ground meat can be quick-frozen, but try not to quick-freeze whole pieces of meat like the one she brought me today.
Noodles can also be quick-frozen, especially raw noodles (such as raw dumplings) to avoid sticking and a sticky texture after cooking.
Try not to quick-freeze vegetables and soups, because the temperature in the quick-freezing process (especially cryogenic quick-freezing) is too low. Temperatures below -30 will have an impact on the nutrition of these ingredients.
In short, it is best to check the optimal storage temperature of food before storing it. If the optimal storage temperature is very low, it is best to use flash freezing;If the optimal storage temperature is too high, try not to turn on the blast freezing mode. 」