Hagi ware is pottery fired in the Hagi area of ​​Yamaguchi Prefecture. Some kilns are also located in Nagato and Yamaguchi. Hagi ware fired in Nagato is specifically called Fukagawa Hagi. Hagi ware is characterized by its unique texture, with almost no decoration, making the most of the properties of the material, and no two pieces are the same.

The individuality of the ceramics is expressed by utilizing the cracks that appear when the glaze expands and contracts, the surface changes that occur with use, known as "nanabake," and changes that occur during firing, such as "yakihen." After years of use, tea and alcohol will seep into the surface, causing the color of the surface to change and show a seasoned flavor.

Hagi ware is also known for its pottery that has been producing vessels that suit the tastes of tea masters since ancient times, so much so that the saying goes, "First Raku, second Hagi, third Karatsu." Hagi ware uses a clay body that is a mixture of Daido clay, Mishima clay, and Mitake clay. These clays have little hardening when fired and have excellent heat retention, which, combined with their good texture, makes them popular for enjoying tea.