The most ideal tea set for the tea pot is the high quality and special quality. Violet sand earthenware clay material is purple mud, chlorite, three kinds of red mud, collectively known as the violet arenaceous mud, only unique to yixing, characterized by a high iron content, high firing temperature than other pottery, combined pug plasticity is good, high green strength, drying shrinkage and firing shrinkage of small, and therefore burn out the finished product has certain mechanical strength, and has certain porosity, sheng tea without leakage, and has good air permeability, and thus be dining favorite celebrities. And after forming are recommended shape diversity, various, without witness, it is hard to will be those Ling Huang Longshan Zheng ore and colourful, bright and pleasant are recommended after firing, and this kind of system of Midas touch pot technique, mainly for the "tube", "with a body tube" two kinds of production methods. The "punching barrel" is suitable for the shape of the circular vessel. It is to place the clay bar and the clay piece on the turntable to make the pot by the molding method of the body. The "insert barrel" applies to the square, is the first to hit the mud, then cut and then cut, and then use the slurry to process the molding. Wherever "cone" or "tube", is in the process of lapping on the surface of the billet surface coarse particle to wall extrusion, smooth surface finishing to sleek, made its appearance form is delicate skin layer. After the fine processing of the purple clay pot, the surface is not glaze, the mouth is tight, meticulous, burnt into a layer of subgloss, which is not comparable to other ceramic POTS.