The first time Cha Gao was produced was in the 7th century in the territory of the modern Yunnan province. From there, it came to Tibet along the Tea Route. In Tibet, Cha Gao was immediately used as a cure for all diseases, and, as it turned out, not in vain. Modern Chinese scientists recognized Pu'er paste as one of the most useful substances obtained from tea leaves. Therefore, it is used in traditional Chinese medicine, but because of the high cost, recipes based on it are not widely used.
An official study of tea paste began in Yunnan in 2002, and in 2005, new production technology was launched. Despite the fact that history has known several different methods of production for Cha Gao such as cooking in boilers and steaming, cryoextraction is now recognized as the most gentle technology. Making Cha Gao in this way allows for the production of the purest product, which is reflected in its taste, aroma, color of the infusion and its effect.