Emperor Huizong of Song can be considered the only “tea emperor” in Chinese history. He differed from other emperors who merely had a particular fondness for drinking tea; Huizong himself was highly skilled in tea art, possessing rich practical experience. He authored a specialized treatise on tea art titled 'Da Guan Cha Lun' (Discourse on Tea from the Daguan Period). Originally named 'Cha Lun' (Discourse on Tea), it was completed during the Daguan era (1107-1110). The work is divided into twenty sections covering topics such as tea-growing regions, climate, picking, steaming and pressing, manufacturing, evaluation and鉴别, white tea, grinding tools, tea bowls, whisks, vessels, ladles, water, the method of whisking tea, flavor, aroma, color, storage and roasting, varieties, and external processing. It provides a relatively detailed introduction to Song Dynasty tea leaves production and the 'whisked tea' method.

As an emperor with supreme status and exceptional artistic taste, who enjoyed both luxury and refinement, Huizong believed that tea drinking was an elegant trend and pastime possible only in times of peace and prosperity. In his view, the essential qualities of tea were: to cleanse the mind and dispel stagnation, to guide towards clarity and harmony, to be simple and unadorned, with a noble charm and serene demeanor. That is, tea is mild and balanced, with a lofty spirit and a tranquil disposition, capable of removing and washing away the accumulations in people's hearts and minds, guiding them towards serenity and harmony.