I dare say I can drink overnight tea, because I have tried. It's summer, and it's very hot. Make a cup of tea, separate the tea from the soup, put it in the refrigerator for one night, and pick it up the next morning to drink. Not only cool but also cool, delicious and convenient. This truth is quite simple. If you make a cup of tea in the morning and serve it in the afternoon, is it equivalent to overnight tea, but you can drink it? Why not make a cup of tea at night and drink it in the morning? Is it haunted at night? Obviously not, so you can drink overnight tea.
Black tea, green tea and tea drinks sold in supermarkets have a long shelf life because they are sealed. Because it is sealed, it has little contact with external bacteria. The main reason of tea deterioration is the growth of bacteria. If you buy tea drinks outside, it is easy to break when you open the lid and touch the air.
Our own tea should be rich in substances that are beneficial to our health. But at the same time, these substances will breed a hotbed of bacteria. Tea drinks sold in supermarkets are generally sterilized at high temperature, so the bacteria content in them is relatively small (even absent), and they are sealed, which is a very bad environment for bacteria and is not easy to reproduce.
If the drinks brewed at home are sterilized at high temperature, they can be kept in the refrigerator for a long time. Although it is known that we need about eight glasses of water on this day, our different water must be healthy and safe. For all the water in our life, there is actually a certain shelf life, and the shelf life of different water is inconsistent, so I suggest that friends must put the water they drink for too long.