After years of precipitation, the traces of time after the porcelain came out of the kiln have left a unique mark on the glaze. These traces are the gradual precipitation of material molecules in and on the surface of the glaze under the baptism of time, forming a unique variation of reflected light and refracted light. At the same time, the use of rubbing over the years has formed a thick layer of shell pulp on the glaze, giving the porcelain a unique charm. In the eyes of connoisseurs, this unique glaze luster is called "glaze light", which bears witness to the history and heritage of porcelain, and is even more precious.
This kind of glaze is like a jade moistened by morning dew, warm and not impetuous, and the luster comes from the inside, as warm as jade. In contrast to the dazzling floating light of the new porcelain, it is more deep and restrained. Even if it is a newly unearthed old kiln, its glaze is slightly changed to earth color, but it is still smooth and smooth, and there is a world of difference from the fake rust and water flushing. This glaze light, bright but not dazzling, seems to be a lake under the moonlight, with a faint reflection. It is by no means the "firelight" that only stays on the surface of the new porcelain, but the refracted light that penetrates deep into the glaze, and is the "treasure light" praised by the people in the industry. Even the "warehouse goods" that have not been opened for hundreds of years after leaving the kiln are as bright as new, but the glaze still has a layer of deep jade-like polish, which makes people feel comfortable and not dazzling. When you gently stroke this glaze with your hand, it will be silky smooth without astringent, in contrast to the astringent hand and burr feel of new porcelain. New porcelain always makes a slight "rustle" sound to the touch, but this glaze is as smooth as jade, making people feel a heavy sense of history. 
Glaze, the essence of porcelain, is like the soul of a person. Modern counterfeiters, no matter how skillful they are, such as high-pressure cooking, grinding or rubbing the cloth wheel, or even etching the glaze with hydrofluoric acid and dyeing the old with soot, can only change its shape, but it is difficult to change its quality. The falsehood they have created has never been able to truly confuse the truth with the false. In the process of implementation, these counterfeit measures have left many flaws, such as the lack of layers in the glaze, dryness and dullness, jerky feel, and identification evidence such as acid bite microholes or regular scratches can be seen under the magnifying glass. Therefore, as long as we learn to recognize the glaze, even if we do not fully grasp the knowledge of the dating of the artifact, we can accurately judge whether it is new porcelain or old porcelain. In this way, we can capture the really good porcelain in the market. The appreciation of glaze light is the true meaning of porcelain appreciation, and it is also the secret of our ease in the market.