It is a sparkling water flavored with sour plum soup, Plum is the phonetic translation of the English word plum, commonly known as sour plum soup.

Sour Plum Soup is a traditional summer drink, made with ingredients such as ume plums, hawthorn, tangerine peel, cinnamon, licorice, rock sugar and other ingredients.

Sour plum soup has a thousand years of heavy historical precipitation, it is one of the oldest traditional drinks in China.

During the Shang and Zhou Dynasties, our ancestors already knew to use plums to extract the sour flavor as a drink. The recipe for the sour plum soup we drink originated from the Imperial Tea House of the Qing Dynasty. During the Qing Dynasty, sour plum soup was popular in the palace palace, in which it was especially loved by Emperor Qianlong.