Its production techniques are diverse, including filling, fragmentation, and plain polishing. Purple pottery is not glazed on the outside or inside, but is finely polished with local river stones that are slightly harder than the pottery body, giving it a unique charm and exquisite craftsmanship. Its works are praised as "the body is like iron, the color is like copper, the reflection is like a mirror, and the sound is like a chime." Its unique and simple temperament distinguishes it from other types of pottery and is a treasure.