Blue and white ceramics were made by applying cobalt paint to the surface of an unfired ceramic, then applying clear glace to the piece, and firing it at a high temperature.

• 青花是在瓷坯上用钴料绘彩，施透明釉后入窑高温烧造而成的白地蓝花装饰的高温釉下彩瓷器。