- Sky-blue Mud( Tian Qing Ni)(天青泥）
Sky-blue Mud is the best among purple mud, and since ancient times, sky-blue mud has been the best.
Sky-blue Mud is produced under the blue-gray purple mud. The appearance and texture of the mineral material are uniform and fine. It is purple-brown and slightly transparent red dense block, brittle and slightly hard. The content of white mica fragments is very small. The surface is shell-like textured and has white wax shape (it will form white dots after firing), and the cross-section is purple-black and slightly translucent red. Because the color of this raw ore is similar to the azure dyeing material, the predecessors used to call it "Sky-blue Mud". Therefore, "Sky-blue Mud" is not named after the color of firing.
- Feature & Advantage:
- Mud property: pulp is tender with many minerals, high content of iron and aluminum, low viscosity, and relatively difficult to form. The kiln firing temperature is extremely high.
- The advantages of the finished product: the double pore structure is obvious, the special double pore structure is given to the Yixing purple clay teapot, the temperature is fast, the heat preservation is strong, it is beneficial to maintain the temperature of the water when making tea, and directly affects the color and fragrance of the tea, simple and stable, ancient meaning Abundant, the tea is delicious, and the evaluation is good.
- Suitable: light roasted oolong tea, Pu'er tea and various series are especially good.
