2, green mud: the fetal quality is light and sparse, and the air permeability and water absorption are very good. Green mud includes: Benshan green mud, Duan mud, white hemp seed mud and red hemp seed mud. The so-called mass mud means that green mud and purple mud are mixed to make mud. In fact, for Ding Shu people, the pronunciation of Tuanni and Duanni is similar, and there is no difference. In fact, they are one. So we collectively refer to it as Duan Ni here. Green mud has fast heat dissipation and good air permeability, and is suitable for soaking Tieguanyin, green tea series and raw Pu 'er tea. Such as stone ladle, antique, water lily pot, etc.
3. Red mud: high density, hard and delicate texture. Red mud is commonly known as cinnabar mud, cinnabar mud and stone yellow mud. In fact, red mud includes red mud, red mud, stone yellow and so on. These mud materials have different internal structures, but their firing colors are all red, so they are collectively called red mud. These mud materials have their own special names because of their different origins and internal structures.
For example, Xiaozhuang Xiaohong mud: located at the bottom of the tender mud seam, as hard as stone and very thin. Khaki, dense block, brick red with light yellow white and light yellow green block, siltstone soil structure. After sintering, it is vermilion with obvious surface texture. The sintering temperature is about 1080℃, and the shrinkage is about 10%.