Ahn combines digital technology with the use of coarse iron-rich clay of the kind traditionally employed in the making of onggi wares. Produced in a limited number of shapes that remained largely unchanged over the centuries, onggi wares were used throughout Korea for cooking, storing and transporting food. By designing his forms on a computer and printing them with a specially modified 3D-printer, Ahn has reinvigorated Korea’s onggi heritage by creating vessels specifically suited to contemporary ways of living.