Longjing tea of a finer Longjing is achieved only by using a genuine, slightly porous, Yixing clay teapot, which since the beginning, was popular exactly for preparing green tea well. The tea can be very expensive, and the prices depend on the varieties, of which there are many. Longjing is divided into six grades: "Superior" and then 1 down to 5. Infused leaves are a good indicator of quality, which is characterized by maturity and uniformity of the shoots harvested for processing. High quality Longjing teas produce tender, whole leaves that are uniform in appearance. Lower quality varieties may vary in color
Longjing District (龍井), taken from the name of a famous well in the area named Dragon Eye Well (龍目井) Dragon Eye Well is located in Longquan Village, under an old camphor tree. One of the Qing governors of Changhua recorded that the well's water was cool and refreshing, and the atmosphere was serene around the well. The name "Dragon Eye" comes from the two rocks around the well that makes it look like a dragon. Longjing houses Taichung Power Plant, the world's largest coal-fired power plant. The district is served by a variety of national roads. The district can be reached by