The longquan celadon is one of the notable varieties of the traditional ceramics of
Zhang Shengyi also cherished high ambitions in his life, trying to burn out a kind of crackle porcelain, which had always been believed to be something bestowed by deities, as an artifact. In order to be disclose the secret of porcelain crackling, he kept to himself and never got married. After serious studies and investigations, he found that for gaining a few pieces of crackle porcelain the people of his time often threw a living person into the blazing kiln. The blood and moisture of the living person caused the crackling of the porcelain. When blood congealed, the color was purple. That is why the color o crackle porcelain was always of a little blood red. Besides, when the porcelain base came across moisture, there was no time for it to shrink and hence crackling in polygonal shape. As Longquan was available with a special kind of clay with the color of a little blood red, the key issue was moisture and the right amoun of water injection. Zhang Shengyi persisted in doing contrast test but failed again and again. Once in a severe winter, when taking a bowl of noodle to him for eating, his brother’s wife Wu Zhenzhen found him injecting water into the kiln. It came naturally to her that her brother-in-law was trying to put out the fire in the kiln, so she lent him a hand. Unexpectedly, a kiln of crackle celadon full of fish-scale cracks cane out, seeming cracked but not broken. Indescribably wonderful crackle porcelain! Zhang Shengyi’s crackle celadon created a sensation of the court above and the masses below. Immediately his kiln was decided to be one of the five famous kilns of the Song Dynasty and its products were exclusively for the use in the imperial palace and export. As Zhang Shengyi was the elder brother of the two brothers, his crackle celadon was also named the “Geyao Kiln” (The Elder Brother’s Kiln) celadon.