"Yangtong" zisha teapot means barrel-shaped pot is a common style among the purple clay teapot varieties, and it is also a special name for a teapot style. Since its creation in the late Qing Dynasty and early Republic of China, the purple clay barrel-shaped pot has become popular due to its simple design, convenient use, easy to handle, and easy to brew tea. It has been widely accepted, appreciated, and collected by most purple clay teapot enthusiasts, and has become one of the classic traditional works of zisha teapot.