What kind of insulation time is the best for a thermos cup

What kind of insulation time is the best for a thermos cup

What kind of insulation time is the best for athermos cup? This question is a matter of benevolence and wisdom, and it varies from person to person. However, as someone who has been in the water cup industry for many years, I have some insights. Today I will analyze it for you and help clear up confusion for those friends who are always struggling with the length of time to keep it warm.

The definition of a thermos cup has been mentioned many times in previous articles. Today I will briefly explain it again. Pour boiled hot water into the cup. The temperature of the water in the cup is 96°C. The lid should be closed for 6-8 hours before opening. , measure the water temperature in the cup. If the water temperature is between 55℃-65℃, it is a thermos cup.

Friends who usethermos cupshave a misunderstanding. They always think that the longer the thermos cup is kept warm, the more qualified the thermos cup is. This cannot be blamed on friends. After all, many businesses now promote the quality of their own thermos cups. As an important promotional point for its own products, the insulation time has misled the consumer market over time.

First of all, when friends use thermos cups, they mainly use their heat preservation function. Secondly, the season when thermos cups are frequently used is usually winter in various countries and regions. Finally, there are many friends who have it. This habit is to drink a cup of warm water with a suitable temperature when you wake up. I like to pour a cup of hot water before going to bed. When I wake up, the water temperature should preferably be 55℃(of course, I am talking about winter here. The glass of water everyone needs after waking up will also change according to the season).

People generally sleep longer in winter, usually at least 1-2 hours longer than in summer. The average sleep time of people around the world in winter is about 9 hours. It can be obviously enough according to the insulation time of 6-8 hours defined by the International Cup and Kettle Association. Some are not able to meet the needs of winter. In addition, when many friends add hot water before going to bed, the water temperature does not reach 96°C. Therefore, the editor believes that the insulation time of thethermos cupis 10 hours, even in winter. During the day, especially those who work or exercise outdoors for a long time, the frequency of drinking water will be high during the day, and the lid of a glass of water will be opened frequently for drinking. Each opening of the lid is a heat release process. The water cup that is kept warm during the period will not last long. These people can still drink warm water after work.

There are also some friends in regions and countries where people have developed the habit of drinking cold drinks. They use thermos cups to hold ice water or cold drinks. Since the heating rate of cold water is slower than the cooling rate of hot water, the cooling time of the thermos cup is usually longer than the insulation time. , there is no authoritative statistical data on this point, but basically it can be said that the cold keeping time is about 1.2 times more than the hot keeping time, that is to say, the thermos cup keeps warm for 10 hours and keeps cold for at least 12 hours.

This also shows that a water bottle with 10 hours of heat preservation can fully meet the needs of friends who like cold drinks to keep cold during the day or night, especially in the hot summer.