The use of small solid copper bottles in ancient times
The purpose of ancient small solid copper bottles is to preserve health. According to relevant public information, it is the theme of incense for Dragon Boat Festival to put Acorus calamus in a small copper bottle to fight the epidemic with incense. In the Song Dynasty, during the Dragon Boat Festival, the emperor presented all kinds of incense sticks to the concubines, eunuchs and Empress Yang of the Southern Song Dynasty.