[Japanese ancient art] tea powder glaze tea warehouse tea into the tea caddy

Tea powder glaze is one of the important varieties of iron crystal glaze in ancient China. The tea powder glaze was produced in the Yongzheng period. As early as the Tang Dynasty Yaozhou kiln and the Liaojin Cizhou kiln also had similar glaze colors. The Qianlong period was the heyday of the tea powder glaze. At present, most of the most exquisite tea-dust glaze porcelains are collected in the Palace Museum. Common products include pots, jars, bowls, jars, and cups. In the Qing Dynasty, the Jingdezhen imitation burning was very successful, and it became a precious glaze color, and the color of the tea powder glaze was yellowish and greenish. Tea powder glaze is actually a kind of crystalline glaze fired at high temperature (1200°-1300°). The crystals are small, yellow or yellow-green, mainly distributed on the surface of the glaze layer. It is more difficult to burn the tea powder, and it is burned in an oxidizing atmosphere at a low temperature stage. When it reaches about 980°C, if it is burned in a reducing atmosphere, it will develop dark green crystal spots, which some people call "crab Jiaqing". If it continues to oxidize and burn, it will give yellow crystal dots, commonly known as "eel yellow". "Tao Ya" records: "Porcelain with yellow and black alternates, it is called the powder of tea. The black is thicker, and there are yellow spots around the bottom of the foot. The porcelain is lively, it is called "eel". send'".