You need to pay attention to the details when drinking boiling water with a thermos, especially for those who use thermos for the first time. In the usual days. If you are still thinking about homework when drinking water, it is simply burnt due to habit. Therefore, people who use the thermos for the first time, it is best to pour boiling water in and leave the lid uncovered. Let it cool before drinking. Wait for the cup. After the habit of keeping warm, use it normally.
The heat-resistant temperature of human oral cavity is 50℃-60℃. Theoretically speaking, what should you pay attention to when using a thermos cup to drink water? The normal temperature of the human mouth is 36.2℃-37.4℃. A temperature of fifty to sixty degrees Celsius can burn your mouth, but in fact, food that the human body feels very hot and very hot is sixty to seventy degrees Celsius. Nowadays, the insulation function of the thermos is getting better and better. After pouring the freshly boiled water into the thermos and leaving it for half a day, the water temperature can still reach above 70℃, which is enough to burn bad people.