Theresa Waryanti's Studio

The clay designs are aired in a cool dry place for about 7 to 10 days before they are ready for firing (the sun plays an important role here - in the monsoon the drying takes longer). These piggy-banks are then fired in the open field together with the pots of the villagers in Kasongan, about 15 kilometres from Yogyakarta. They are put inside the big pots, so they are quite protected during the firing.

The temperature of firing is about 400 degrees centigrade. The duration is about four hours and haystacks are used to make the bonfire. The pots are then left to cool down until the next morning. The black colour is achieved by firing twice.