In the first impression of many people, it is winter that is closely connected with the thermos flask. The highest frequency of using the thermos flask is also in winter. When the weather is cold, the thermos flask can let you drink a cup of hot water, which can make people satisfied in a moment. In summer, everyone likes to drink cold drinks. The thermos flask seems to be unsuitable, but in fact, most people misunderstand it, In fact, in addition to heat preservation, many thermos flasks can also keep cold, so even in hot summer, thermos flasks can play a great role.
What few people know is that the thermos flask can also keep cold. Put a cup of cold water in the thermos flask. Its low temperature maintenance time is far longer than other containers, so the thermos flask can also be used to keep cold.
In summer, you will inevitably want to drink tea, such as some flower tea and other drinks. You must use hot water to soak these things. If you use a mug, a glass cup and so on, it will be hot at the beginning, but the thermos flask will not. The thermos flask is vacuum insulated.
I believe that many people will make some desserts in summer. Naturally, such desserts are best drunk when they are cold. After freezing, they can be poured into a thermos flask, even if they are not at home, they can be drunk anytime and anywhere.