It is understood that the products produced by the company-Yikui Xinhui Chenpi are all mature red oranges, and only citrus fruits around Xiongzita, the core production area of Xinhui Chenpi, are selected. The citrus fruits produced in this core producing area are coarse and fine, which is the top grade for making Xinhui tangerine peel and citrus tea, ensuring the healthy quality of Yikui products. Another product, Pu 'er, is selected from a kind of spring sword in Menghai, Yunnan Province. In the process of drying, aging and preservation, it also inherits the traditional processing technology of dried tangerine peel. "It can be said that the source, production, processing and sales channels of products can be strictly controlled independently to ensure the quality, safety and authenticity of products." Liang is full of confidence when talking about his dried tangerine peel. "The prosperity and popularity of citrus tea is only a matter of recent years. As a new subdivision of tea, citrus tea is still in the stage of rapid development. Quality and safety issues need more attention from practitioners. We must control quality and safety issues with high standards and a high starting point, so that the industry will always maintain healthy development, take fewer detours, and live up to the pursuit of the majority of citrus tea friends. " Liang added.