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 tea is also a favorite for the people of Nandu and Quzong counties, due to its ease in brewing and intense aroma. Longjing tea and Tianmu tea may match Heaven Pool tea due to the weather in their growing regions. Because the cold season comes earlier to the mountains, there is abundant snow in the winter, hence the tea plants germinate later. [Wen Zhenheng] Longjing tea is manufactured in the West Lake district of Hangzhou, China. The Longjing, literally "Dragon Well", is located at Fenghuang Mountain. Tianmu Mountain is located at Lin'an County in the north west of Zhejiang Province. There