I often bring a thermos cup with me when I go out. Can I make tea and coffee?

What do people usually put in thermos cups now? Some friends just put hot water, while others put some sugar water or tea. Some people have said before that tea cannot be placed in a thermos cup because tea is more acidic. However, metals may precipitate harmful substances when exposed to acid, which is not good for the human body. Therefore, it is not recommended to put tea in a thermos cup.

But is this really the case? Will we only be able to bring ordinary hot water in the future? In fact, no. The prerequisite for metals to release harmful substances when encountering acids is strong acid. The acid in tea is completely insufficient and will not affect the human body. In fact, everyone can drink tea with confidence.

However, it is still recommended that you only bring ordinary water, such as tea or coffee. It will be very troublesome to clean the cup. These two drinks will leave colored water stains, and you should simply wash them with water. It cannot be flushed. The mouth of the cup is so narrow that you cannot put your hand in it, so it will be difficult to clean. This is unhygienic. In fact, it is not as good as drinking ordinary water. In this way, you only need to rinse it every day.

It is not recommended for everyone to pack coffee and tea, but it is best not to pack some things, such as perishable things, milk, porridge and soy milk, etc. For example, if the children at home are in a hurry to go to school, the family may put the table on the table. Put the hot milk on the table into a cup for the child, hoping that he will drink it when he gets to school. However, dairy products, which are rich in protein, are actually very perishable. In addition, the thermos cup is insulated and sealed, so it may not take long for it to go rancid.

Drinking it without knowing it can easily cause stomach upset, so remember to eat and drink these perishable things while they are fresh. Do not store them in a thermos cup, as they may become bad in a short period of time. It's broken, let alone taken out for a long time.

One more thing, if the thermos cup is well insulated, don’t drink too hot water. Some cups are of good quality. If you pour water into them and drink them for a long time, your mouth will burn. At this time, you need to be careful when drinking water. It is not good to drink water with a high temperature. Drinking water with a temperature above 70 degrees may cause esophageal burns. You may not feel pain but have been injured. If this happens frequently over time, it may easily lead to esophageal cancer and other diseases.

Many people are accustomed to drinking hot water. The hotter it is, the more comfortable it is. In fact, even if it is really comfortable, don’t do this. Just drink warm water. If you are not used to drinking cold water, don’t drink hot water. For water, you can buy an ordinary thermos cup as needed. In fact, the insulation time is more than five hours. People who need to be outdoors are suitable for people with good insulation effect, but for most people, a few hours is enough. .