Can overnight tea bags continue to brew?

It is not recommended to leave the tea bags overnight and then soak the next day. It is not recommended to leave tea bags overnight and then pack them the next day. Generally speaking, there is no problem with brewing a tea bag twice. However, the tea bag itself is not resistant to brewing, and the tea bag should not exceed three times at most. In addition, from the point of view of the brewing time of the tea bag, it is best not to exceed 12 hours from the first cup to the third cup. And the overnight tea bags are obviously more than 12 hours old. If the overnight tea bag is left for too long, most of the vitamins have been lost, and the protein and sugar in the tea soup will become nutrients for the growth of bacteria and mold, and it is easy to deteriorate. If it is not spoiled, it can still be soaked and drunk. It still has anti-cancer and anti-oxidation effects, but the content of vitamin C is greatly reduced.