Laohuifang brand: Sour plum powder contains dark plum, so it has the effects of promoting fluid production to quench thirst, relieving summer heat, invigorating spleen and appetizing, removing fire and refreshing, with rich taste, sweet and sour taste. Xi 'an Sour Plum Powder Laohuifang brand Sour Plum Powder originated from the traditional beverage Sour Plum Soup, which has the reputation of "the treasure of Qing Dynasty" among the people. It is a very authentic solid beverage made of traditional Chinese medicine such as sour plum, hawthorn juice and osmanthus.