"Dou Ji" belongs to the series of Pu'er tea under the Yiwu Zhengshan tea industry in Xishuangbanna, Yunnan. Xishuangbanna Yi Wuzhengshan in Yunnan is a well-known Pu'er tea company that implements modern management based on traditional production concepts. The production headquarters is located in Xishuangbanna, the core place of origin of Pu'er tea, and has set up a preliminary processing factory for fresh leaves in the main ancient tree tea gardens in Erhai and the ancient six major tea mountains. While deeply controlling the purity and quality of raw materials, it also enables the entire production process. Has a unique ecological and geographical advantages.