Longjing tea from bluish to deep green after steeping. Before infusion, higher quality Longjing teas have a very tight, flat shape and light green color. A study by Wang and Ruan (2009) found that one aspect of the perceived low quality of Longjing teas was a higher concentration of chlorophyll, producing a darker green color. The study revealed that free amino acids and theanine concentrations contribute positively to what is perceived as a good taste. Longjing tea was granted the status of Gong Cha, or imperial tea, in the Qing dynasty by the Kangxi Emperor. According to the legend, The Kangxi Emperor's
Chinese sun and moon mirrors also named 'water and fire mirrors'." "Chénglùpán" 承露盤 "plate for receiving dew" is a near-synonym for "fangzhu" (Needham and Wang 1962: 89). The "huabiao", which is a type of Chinese architectural column traditionally erected in front of palaces and tombs, is topped by a mythical "hou" 犼 "a wolf-headed Chinese dragon" sitting on a round "chenglupan" "dew-collecting plate" cap. There are comparatively fewer English translations of the Chinese moon-mirror, which lacks a direct translation equivalent and is more frequently romanized, include: Metaphorically using "fangzhu" and "yangsui" mirrors to represent "yin" and "yang" reflects a more commonly used Chinese philosophical metaphor