After washing, fabric was laid on a stone and beaten with wooden paddles. The practice, called dadeumi, straightened the weave and gave cloth a finished sheen.
What dadeumi was
Dadeumi was the work of beating washed fabric with wooden beaters. Starched cloth was straightened and smoothed so it could be worn again. A long, low stone called a dadeumi-dol supported the cloth.
Methods by fabric
The Joseon household manual Gyuhap Chongseo sets out separate finishing methods for silk, cotton and ramie. The work required knowledge of each fabric and took considerable time and effort.
A surviving stone
The National Museum of Korea’s Joseon-period dadeumi stone, accession Sinsu 13090, is 55 cm long. The photo shows the stone alone, without beaters or a worker. Washing was only one stage in the care of a well-kept garment.