Longjing tea is actually not from Hangzhou. Many of these "inauthentic" longjing teas are produced in provinces such as Yunnan, Guizhou, Sichuan, and Guangdong. However credible sellers may sometimes provide anti-fake labels or openly state that the tea is not from Zhejiang. Experienced drinkers may be able to tell if Longjing is authentic by taste and smell. The aroma and flavors of the "inauthentic" Longjing teas are not as complex, or long-lasting as the authentic tea. These teas, although similar in appearance, are mild in flavor and aroma and do not have the long-lasting aftertaste of the original. Longjing has a signature
Language and overseas Chinese communities Mandarin are well preserved in Upper Burma. Ethnic Chinese in Vietnam are categorized into three groups that are based on migrant history, location and level of integration. The largest group is the Hoa, numbering almost a million individuals and have historically been influential in Vietnamese society and economy. They are largely concentrated in major cities of the former South Vietnam (especially in Ho Chi Minh City) and largely speak Cantonese, with Teochew being found among a significant minority. The two smaller Chinese-speaking groups consist of the San Diu and Ngái. The San Diu number over 100,000 and are concentrated in