Ge Yuansheng examines a colored glazed Chinese character he made at his workshop in Taiyuan, Shanxi province. [Photo by Peng Ke'er/China Daily]

If the colored glazed tiles and other components used in the constructions at the Forbidden City and the Summer Palace in Beijing were to be laid on a path leading to their place of origin, the road would lead all the way to Shanxi province.

The famed glazed tile of Shanxi is an art form that dates back to the Southern and Northern Dynasties (420-589) and the later Ming Dynasty (1368-1644).

Because of its complicated production process and high cost, the tiles were used only in building palaces and religious buildings, where budget was the least of concerns.

Among the several major workshops making colored glazed tiles in Shanxi, the one run by the Su family of Mazhuang village in Taiyuan is the most famous.

Craftsmen from this family served at two of the largest glazed tile workshops in Beijing during the Ming and Qing (1644-1911) dynasties, producing tiles for the royal families' constructions.

Ge Yuansheng, 82, is the seventh-generation inheritor of the Su family craft, which has been recognized as a national cultural heritage.

The craft was being passed on to only male offspring of the Su family. The tradition was broken only once, during the "cultural revolution" (1966-76), when all craft work－including the production of colored glazed tiles－was regarded as an "evil legacy" of the feudal society and suspended.

Ge checks a peacock blue colored glazed vase he made. [Photo by Peng Ke'er/China Daily]

The legacy could easily have died. But soon after the "cultural revolution" ended, sometime in 1979, a commune of Haozhuang village in the suburb of Taiyuan set up a workshop to produce colored glazed tiles. Ge, the commune's head, invited Su Jie, the Su family's sixth generation craftsman, to come to the factory and teach the craft to other members of the commune.

Su was so moved seeing hope for the craft's revival, he passed on his family legacy to Ge, thus making him the seventh-generation inheritor of the Su family craft.

Ge was then 39."It was from that moment that my life began revolving around colored glazed handicrafts," Ge said.

A colored glazed handicraft Ge made from coal cinders. [Photo by Peng Ke'er/China Daily]

The Su family's craft integrates ceramics, architecture, sculpture and religion. Its production process is long and complicated, involving selection of raw material, kneading and modeling of the clay, drying and firing it, cooling and then glazing it.

Firing the tile is a dynamic process requiring high temperatures. The artisans are picky about thickness of the material, as minor deviations can ruin the final product. Glazing, of course, is the key.

Su and Ge worked together to make peacock blue glazed tiles, a long lost craft even within the Su family. After countless experiments, and looking up many reference books in libraries, they made a breakthrough in 1981.

Thanks to the peacock blue glazed tiles they created, the Yongzuo Temple in Taiyuan and other places of historical interest have finally replaced their damaged tiles and decorations.

Ge paints patterns on the model of a glazed ware. [Photo by Peng Ke'er/China Daily]

The duo have mastered the technique－the raw materials, control of the temperature and duration of firing hold the key.

And now, Ge is trying to improve the craft used in making peacock blue glazed tiles. "I have discovered that peacock blue is not just one color, but a series of gradations from green to blue, the glaze depending on the firing temperature," Ge said.

In 2007, Ge accepted Su Yongjun, the eldest grandson of Su Jie, as his apprentice, thus returning the Su family craft to the family. Su Yongjun is now the eighth-generation inheritor of the craft.

Ge and Su Yongjun are now working together to make colored glazed tile handicrafts. They also train interested young people in Taiyuan.

Peng Ke'er contributed to this story.