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
Pei Yuwen Pei Yuwen Pei Yuwen (; ; born 4 July 1985 in Longjing, Yanbian) is a Chinese footballer of Korean descent who currently plays for China League One side Yanbian FC. Pei Yuwen started his professional football career in 2005 when he was promoted to Yanbian FC's first squad. On 5 January 2013, Pei transferred to fellow China League One side Shenyang Zhongze on a free transfer. Pei returned to Yanbian FC in February 2015. He played 26 league matches in the 2015 season as Yanbian won promotion to the Chinese Super League. On 5 March 2016, Pei made his Super