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
Zhejiang in both male and female roles. Other important opera traditions include Yongju (of Ningbo), Shaoju (of Shaoxing), Ouju (of Wenzhou), Wuju (of Jinhua), Taizhou Luantan (of Taizhou) and Zhuji Luantan (of Zhuji). Longjing tea (also called dragon well tea), originating in Hangzhou, is one of the most prestigious, if not "the" most prestigious Chinese tea. Hangzhou is also renowned for its silk umbrellas and hand fans. Zhejiang cuisine (itself subdivided into many traditions, including Hangzhou cuisine) is one of the eight great traditions of Chinese cuisine. Since ancient times, north Zhejiang and neighbouring south Jiangsu have been famed for their