What does it mean that porcelain entering and leaving the kiln are all of the same color?

One color in the kiln and all colors in the kiln refer to Jun porcelain.

"One color goes into the kiln, and all colors come out of the kiln" is a high generalization and praise of Jingdezhen kiln glaze porcelain. Jingdezhen kiln glaze porcelain was first burned in Yongzheng period of Qing Dynasty. Since then, the official kilns and folk kilns in various dynasties, as well as the Republic of China until the establishment of People's Republic of China (PRC), have been extensively burned, and have continued and developed to this day.

Jingdezhen's kiln-changed red glaze is developed and changed on the basis of Langyao red glaze. Its main purpose is to adapt to more kiln sites, so that glaze water can emit different colors in different temperature zones, thus reducing the firing cost of kiln and improving the success rate of products to meet the needs of different people. In Jingdezhen, this magical glaze color is also called "untitled".

Artistic characteristics of Jun porcelain

Jun porcelain belongs to the northern celadon system. China celadon has a long history. Before the Tang Dynasty, celadon was the mainstream of ceramic production. Jun porcelain is different from other kinds of porcelain because of its unique art of natural kiln transformation. The kiln transformation phenomenon of "one color in the kiln and all colors in the kiln" constitutes the unique aesthetic feeling and artistic effect of Jun porcelain, which has a high artistic charm. As soon as it came out, it was cherished by the world and entered the ranks of famous kilns.

The outstanding technical achievement of Jun kiln is to reasonably control the change of flame atmosphere in the firing process on the basis of scientifically matching tires and glazes, and transform the glaze color of the same glaze into kiln color with different shades by using oxidation and reduction atmosphere.

Jun Kiln is the only kiln mouth in China where copper is intentionally mixed into glaze to burn porcelain. However, due to two factors, Jun porcelain is not perfect: one is the natural flow of glaze during firing. At that time, people could not control it well. If the glaze sticks to the sagger after firing, it will become waste, so they can only apply half glaze to prepare flowing glaze.

But in this way, it will affect the beauty of the appliance accordingly. Therefore, observing the Jun glazed porcelain handed down from generation to generation, most of them are semi-glazed, and there is glaze flow and glaze accumulation at the junction of tire and glaze, and only a few objects are full of glaze. Second, due to the kiln type, the highest temperature that can be reached is unstable or can not reach the normal color temperature of copper. Therefore, at that time, there were not many Jun porcelain that could really burn red porcelain, and it was even rarer to burn all red porcelain.