Many friends don’t know much about what supercooled water and subcooled water are. Today, the editor will share it with you. I hope it can help everyone. Let’s take a look!
Contents of this article
- What is supercooled water and what is the use of this water
- Steps for immersing noodles in cold water
- Steps for immersing dumplings in cold water
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- Why do we need to pass cold water over the noodles
- What is supercooled water
- Can the refrigerator be filled with cold water?
1. What is supercooled water and what is the use of this water
1. What is \”supercooled water\”? We know that under standard atmospheric pressure, water will solidify and freeze at low temperatures below 0 degrees Celsius. But there is a prerequisite for water to freeze, that is, there must be \”condensation nuclei\” inside for the growth of ice crystals. If the water is too pure and there are no condensation nuclei, it may not freeze below 0 degrees Celsius.
2. To do this experiment, you need a high-performance refrigerator and several bottles of pure water.
3. Put the purified water into the freezer compartment of the refrigerator and freeze it at -24 degrees for 2 hours and 45 minutes. At this time, the temperature of the water is already lower than Zero degrees (freezing point), but without freezing, you get supercooled water. (If you want to conduct this experiment at home, you have to repeatedly explore the temperature and freezing time of the refrigerator)
4. Then gently Cold water is taken from the refrigerator.
5. Tap the bottle lightly with your knuckles, and you will see the water in the bottle freeze quickly! Watching a bottle of transparent water turn into translucent ice almost instantly, almost like magic!
6. Because the so-called pure water cannot be completely pure, it just has very few condensation nuclei inside it, which does not mean that it will never freeze. It will also freeze if the temperature is lowered further, and it will also freeze if the outside world gives it a disturbance, such as a knock, so be very careful when taking out the water bottle from the refrigerator.
7. Put some ice cubes in a bowl and slowly pour supercooled water on it. You can get fast-growing ice bamboo shoots. If you have art As for cells, sculptures of different shapes can be made.
8. You can also very carefully pour the supercooled water into a clean bowl, put in an ice cube, and let the ice cube freeze in the bowl. surface.
9. In a clean cup filled with supercooled water, put a small piece of ice cube into it and watch the water in the cup solidify rapidly with the ice cube as the center. Fantastic.
10. In fact, the texture of ice formed by supercooled water is very crisp because its temperature is not very low. Adding various seasonings, making a bowl of smoothie is also a great way to cool down in the summer heat.
11. Human beings have mastered the scientific knowledge of supercooled water very early. I remember reading a science fiction novel by Verne. I can’t remember the name. The general content is that the earth split into a piece, and some people lived on the separated land. They saw a huge lake, all of which was supercooled water. Someone threw a small stone into it, and the entire lake froze instantly. . What a grand scene!
2. Steps of submerging noodles in cold water
After the noodles are cooked, it is necessary Pour cold water to allow the freshly cooked noodles to shrink. Noodles that have been soaked in cold water will be more delicious, and the surface of the noodles will be smoother and less likely to stick together. The steps for soaking noodles in cold water are as follows: wait for the water in the pot to boil, and use chopsticks to quickly lift the noodles up and down in the pot to prevent the noodles from sticking together; cook over high heat, and boil the pot twice. Order cold water twice and the pot is ready
3. How to use cold water for dumplings
You asked about the method of immersing dumplings in cold water. I think the method of immersing dumplings in cold water is: after cooking the dumplings, if you want them to cool down quickly, you can prepare a large bowl of cold boiled water and put the cooked dumplings in After soaking in cold boiled water, the dumpling wrappers will quickly cool down, but the dumpling fillings will not get cold. This method can be used by people who like to eat cold dumplings
4. Why do you need to pass cold water over the noodles?
To pass the noodles under cold water means to cook the noodles. put in cold waterRun through the water and pick it up again. The purpose of super cold water for noodles is to make the freshly cooked noodles shrink when they are cold, but the surface of the noodles will be slippery and less likely to stick together. When the cooked noodles are freshly cooked, they are soft and very hot, so they should not be eaten immediately. Passing cold water over the noodles for immediate cooling will not only reduce the temperature of the noodles to a standard suitable for human consumption, but also reduce the internal temperature of the noodles. The fiber shrinks sharply, making the noodles more chewy and chewy, and increasing the flavor of the noodles.
5. What is supercooled water
There is a certain amount of supercooled water Conditions for the formation of water: Either due to the lack of condensation nuclei in the water, or other reasons, water that remains liquid below 0°C is called supercooled water.
6. Can the refrigerator be filled with cold water?
Can the refrigerator be filled with cold water? Those who have used ice water, because the refrigerator can also freeze and make ice, of course he can make ice water. Ice water can only be cold, but the refrigerator can cool the bed and put meat, duck, and any kind of meat in it. The refrigerator is excited, so he can get some ice water. We put the ice water in the refrigerator, and he can defrost it. If the ice water is not put in the refrigerator, it will heat up, but the things in the refrigerator will be cold even if they are closed in the refrigerator.
Okay, the question about supercooled water and what supercooled water is is over here. I hope it can solve your problem!
