As we know them today, casserole pot sets are characterized by their heavy, durable construction and ability to distribute heat evenly, making them ideal for slow-cooking stews, soups, and other simmering dishes. In ancient China, pottery was already central to daily life, and the use of clay cookware such as casserole pots dates back to the early dynasties. These pots were made from various materials, including the fine clay found in regions like Yixing and Jingdezhen. The pottery tradition in these areas is well-documented, with Yixing pottery, for example, being known for its special clay that retains heat well. This made it a great choice for slow-cooked meals, which are a staple of Chinese cuisine. The combination of quality materials and intricate craftsmanship meant that the humble casserole pot was elevated to an art form.