Longjing tea or by steaming the leaves before they completely dry out. As is the case with other green teas (and white teas), Longjing tea leaves experience minimal oxidation. When steeped, the tea produces a yellow-green color. The tea contains vitamin C, amino acids, and, like most finer Chinese green teas, has one of the highest concentrations of catechins among teas. For best infusion results, water at around 70-75 °C or 167-176 °F should be used to brew the tea leaves. Although it is common practice nowadays to steep Longjing tea in porcelain or glassware, it is claimed the real taste profile
Qin Jiushao wealthy (Katz, 1993). Qin Jiushao Qin Jiushao (, ca. 1202–1261), courtesy name Daogu (道古), was a Chinese mathematician, inventor, politician and author. He is credited for discovering Horner's method as well as inventing Tianchi Basins, a type of rain gauge instrument used to gather meteorological data. Although Qin Jiushao was born in Ziyang, Sichuan, his family came from Shandong province. He is regarded as one of the greatest mathematicians in Chinese history. This is especially remarkable because Qin did not devote his life to mathematics. He was accomplished in many other fields and held a series of bureaucratic positions in