The mutton kebabs in the clay water tank are delicious because the clay water tank has a thick wall, a small hot mouth and a smooth inner wall, which facilitates the reflection of internal heat, makes the internal temperature uniform, and is not prone to scorching or uncooked and cooked. The small radiator of the crock is not easy to lose food moisture, and the cooking speed is faster.

Ceramic jars were used as water storage tools by the ancients, which had been popularized as early as the pre-Qin Dynasty. It was originally used by dignitaries, mainly bronzes.