What is the temperature of cold water? What is the temperature of hot water?

Generally, below 20 degrees is cold water, 20 degrees and 40 degrees are called warm water, and 40 degrees and 60 degrees are called warm water. More than 60 degrees is called hot water, and more than 90 degrees is called boiling water.

Warm water, as distinguished from cold and hot water, is water that is between the two temperatures. In general, there is no strict sense of lukewarm water, and there is no strict definition of lukewarm water in science, and the temperature of lukewarm water that everyone feels is not necessarily the same. Warm water is often said in life to be judged by the sense of touch, neither cold nor hot, generally 25 40 water can be called warm water, close to the body temperature of the human body.

Hot water, boiling water, or water whose temperature has ever reached its boiling point; Warm boiled water refers to fresh boiled water that is cooled to room temperature, and can also refer to boiled water that is cooled and mixed with fresh boiled water to a palatable temperature. Experts believe that drinking ice water is not appropriate, because the intake of ice water will make the gastrointestinal mucosa suddenly cold and constrict the originally open capillaries, making smooth muscle spasm, which may cause gastrointestinal discomfort or colic or even diarrhea, and drinking more hot water is also a great benefit.

Cold water, warm water, and hot water are mainly judged by people's feelings, and vary slightly from person to person.

The temperature of the average person's finger is about 32 degrees Celsius.

34 degrees Celsius, if the water temperature is more than this temperature, we will feel that it is cold water, higher than this temperature too much will be considered hot water, around this temperature is generally considered to be warm water, two this feeling is also related to the ambient temperature, such as the temperature in the north in winter, the well water is generally a few degrees but feels lukewarm.

Everyone's tolerance is different, some people don't feel hot in 60-degree water, and they think it's lukewarm water, and some people can't stand it anymore. You can use a thermometer yourself.

Try it, measure the temperature when you feel it is lukewarm water, and measure the temperature when it feels like hot water.

Put the water in the refrigerator for ten minutes and then try it with your hands to think it is water, and then measure the temperature, and your data will be available, but this data is only more accurate for you, and it is only for reference for others.

Warm water refers to water with a water temperature of about 40 degreesIt can be mixed with hot and cold water, or it can be heated with water and then cooled naturally.

Hot water refers to 70-80 degrees of water. Data shows that hot water is 5 times more effective than cold water for washing and sterilization, which is not only comfortable, but also ensures health. of households agree that hot water is 5 times healthier than cold water, and 60% of consumers believe that hot water should be extended to household chores such as laundry and cooking.

Warmth to relieve drunkenness:

Many drinking friends are prone to getting drunk and hurting themselves when they exchange glasses. Although there are many so-called "hangover recipes" that people want to get easy from being drunk, the best way is to let the drunk drink a few glasses of warm water immediately, which can make the warm water gently dilute the diluted alcohol, protect the human liver, and compensate for the large amount of water lost due to drunken vomiting.

At the same time, you can consciously drink warm water after each drink to dilute the amount of hangover in the body and remove the "alarm" of hangover damage to liver function as soon as possible.

0 and below – fingers feel cold, and continuous touching for a long time will produce a tingling sensation. 10 - It feels cold and can generally be tolerated. 20 — The feel is slightly cooler, and with the extension of the contact time of the hole search, the feel gradually warms. 30 — Feel slightly warm, and search for comfort.

40 — If you touch a patient with a high fever. 50 - Feel hot, and you may feel sweaty when touched for a long time. 55 — The critical temperature of being burned, i.e. more than 55 degrees Celsius, it is possible to get burned.

1. The temperature of cold water is generally below 10 Xuyan, and the ice water is different according to the amount of ice content, generally 0, such water temperature is very different from the human body temperature, so it will cause a relatively strong physiological reaction after drinking, and after the cold water entrance, it will cause the surface blood vessels of the oral cavity, esophagus and stomach to contract rapidly, and the local blood circulation in contact will slow down.

2. Because the blood vessels of the digestive tract undertake the important task of absorbing and transporting nutrients, when the blood circulation slows down, it will affect the function of digestion and absorption. Therefore, when eating, we do not recommend drinking ice water and iced drinks below 10, because it is not conducive to the digestion and absorption of food, especially for friends with weak gastrointestinal function, it may cause discomfort such as food accumulation and gastrointestinal cramps, which is what the elderly often say, "hot and cold are mixed together, and it is easy to have a stomachache".