These clay teapot videos pop up on my feed every so often and they’re so relaxing to watch. This one is a Yixing clay teapot (also called a Zisha teapot) and they date back to the 15th century. The name comes from the city of Yixing where the clay originally came from and they are made mainly for black and oolong teas where brewing and heat aren’t as much of a problem (as long as you don’t put boiling water in them—must be 85℃ or less).
As for the technique in the video, it requires careful consideration, a variety of tools, and a keen eye to get the proportions just right.