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 language and varieties in the United States language classes teach simplified characters and Standard Mandarin Chinese. About 40% of all Chinese-speakers in the United States live in California. Chinese language and varieties in the United States Chinese language, mostly Yue varieties including Taishanese and Cantonese, are collectively the third most-spoken language in the United States, and are mostly spoken within Chinese American populations and by immigrants or the descendants of immigrants, especially in California and New York. Over 2 million Americans speak varieties of Chinese, with Standard Chinese becoming increasingly common due to immigration from mainland China and to some extent Taiwan. Despite being called dialects or