Why did Chinese bronze casting grow out of earlier ceramic technology?

Chinese bronze casting grew out of earlier ceramic technology because it was a direct technological and aesthetic extension of the sophisticated high-heat ceramic traditions established during the Late Neolithic period.1

The development of bronze casting relied on the same fundamental techniques used by Neolithic potters, specifically the construction and baking of clay cores and sectional piece molds. This connection is evidenced by the continuity in vessel shapes, such as the hollow legs of the li cooking caldron, which were already being produced using ceramic molds and cores before the widespread adoption of bronze.12

Rather than replacing the existing ceramic tradition, early metalworking in China adapted these established methods to create bronze objects. The process of sectional-mold casting—which involves building a clay model, encasing it in clay molding, and using a core to form the vessel's interior—reflects an early mastery of the ceramic medium. Consequently, the evolution of bronze vessels, from thin-walled ceramic-like forms to more complex, sculpturesque works, demonstrates how bronze casting matured by building upon the technical foundation of Chinese pottery.132