Iron white porcelain, a type of Joseon white porcelain, is characterized by a black color that resembles ink, unlike blue and white porcelain. It has been actively produced since the 17th century and is a unique pottery of the Joseon Dynasty. It was decorated with black pigments made from iron ingredients in place of expensive Arabian blue pigments. As a result, folk paintings were often drawn into its surface.

With the onset of the Japanese Invasion of Korea in the 17th century, imports of expensive blue pigments from China plummeted, and in order to replace them, artisans began painting with black pigments mixed with cheap iron. This method was accepted as easily as brush painting on white paper, and despite the increasing production of blue pigments in the 18th century, there was a refusal to regress. As a departure from Chinese culture, iron white porcelain evolved into a distinct pottery form unique to Joseon.

We often see experimental patterns on Iron White Porcelain, especially, this jar features a distinct pinwheel pattern which is almost abstract.