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%.
Fudong Red Mud: Thick seam, hard as stone, yellowish brown, containing fine mica sand, mineral rock structure. After sintering, it is reddish brown with fine surface and obvious flaky structure. The sintering temperature is about 65438 0050℃, and the shrinkage is about 65438 04.2%.
4. Generally, vermicelli has high mesh number and high density, and the loss of aroma adsorption on high-fragrant tea products is small. The flat round vermicelli pot sintered at high temperature is beneficial to tea, gathers heat and promotes fragrance, and is a companion of oolong tea. If you soak Tieguanyin, the pot body should be below 230CC, and the pot shape should be short, such as stone, Wendan, small ancient style, small stone ladle, four corners, etc., which can show the characteristics of tea fragrance and smoothly release the tea rhyme and flower fragrance of Tieguanyin. It is not advisable to use a straight pot with a high barrel to make Tieguanyin tea, because it is easy to form residues when pouring tea in a pot with a high barrel, which will release tea tannins and cause tea bitterness.
5. There are some other mud materials, such as downhill mud and stone yellow.
Downhill mud: Downhill mud refers to the purple clay excavated between Huanglong Mountain and Qinglong Mountain when Taodou Road was built in Dingshu Town, Yixing. Because it is mainly found in this steep slope project, it is commonly known as downhill mud, which is the raw ore of purple mud, red mud and Benshan green mud. Excellent permeability, suitable for soaking Tieguanyin, rock tea and cooked tea, and the brewed taste is pure. Such as Tieguanyin.