The primary difference lies in the firing temperature and clay composition. Pottery (earthenware/stoneware) is fired at lower temperatures (1,000°C–1,200°C), resulting in a porous structure that usually requires glazing for waterproofing. Porcelain is fired at much higher temperatures (above 1,300°C) and contains kaolin clay, which creates a vitrified, translucent, and non-porous finish. For commercial use, porcelain is generally preferred for its superior durability, chip resistance, and thermal shock stability.