Sand-fired Pot, or Purple Sand Pot, or Yixing clay teapot is made from "Zisha", a purple-sand clay found only in Yixing. This traditional style commonly used to brew tea originated in China, dating back to the 15th century, and are made from clay produced in the region of the town of Yixing in the eastern Chinese province of Jiangsu.

Prices can vary from US$20 to over US$100 per teapot. The growing popularity and high demand has lead to some Yixing teapots being mass produced. All Yixing teapots have the artist's signature on the bottom.

Yixing teapots are meant for use with black and oolong teas, as well as aged pu'er tea. They can also be used for green or white tea, but the water must be allowed to cool to around 85 degrees Celsius before pouring the water into the pot. With "Zisha", a tiny amount of tea is absorbed into the pot during brewing. After prolonged use, the pot will develop a coating that retains the flavor and color of the tea. It is for this reason that soap should not be used to clean Yixing teapots. Instead, it should be cleaned with fresh water and allowed to air-dry.

These fine teapots are small by Western standards because they are generally designed for a single drinker. Originally, the Chinese would pour the tea from the spout directly into their mouths. It was not until the teapots were exported to the West that people started to use them in conjunction with a teacup.