Bitter buckwheat is special wheat, growing in Xichang city, west of Sichuan province. Xichang is center of satellite-lauching in China. Bitter buckwhet grows in high-cold condition at an altitude of 1500 meters. And there is no pollution. It is organic-standard tea. For abundant microelements, it is helpful to lower cholestrin, blood-pressure, blood sugar and so on. We can supply you with various package, such as bulkpackage, individual package.