Pay attention to the details when using a thermos cup to drink boiled water, especially those who use the thermos cup for the first time. In the usual days. If you still want to work while drinking water, it is very easy to burn because of the habit, so the first time you use the thermos cup, the best is to pour the water into the lid, do not cover the lid, cool and then drink, wait for the cup After the heat preservation function is used, it will be used normally.
Domestic vacuum flask manufacturers will meet in the Yongkang area of Zhejiang Province. At that time, it has become the largest production base of thermal insulation cups in the country, with an annual output value of 10 billion yuan and annual sales of 9 billion yuan, accounting for more than 80% of the national market share. The human mouth has a heat resistant temperature of 50 ° C to 60 ° C. In theory, using a thermos cup to drink boiled water is about to pay attention to it. The normal temperature of a person's mouth is 36.2 ° C -37.4 ° C. At a temperature of fifty or sixty degrees Celsius, the mouth can be burnt, but in fact, the body feels very hot and hot food is sixty or seventy degrees. Nowadays, the insulation function of the thermos cup is getting better and better. After the freshly boiled water is poured into the thermos cup, it can be placed for half a day, and the water temperature can reach above 70 °C, which is enough to burn people.