First a thick white ceramic coating covers all the dark clay underneath. Then the outlines of the pictures are etched into the white coating. After which the white glaze is scraped away, removing the white coating in some areas to reveal the dark clay underneath. Transparent glaze is then applied and it is fired in the kiln.
This Cha Hang A Ree (large tea storage container) by Lee Kang Hyo is a superb example of this style. The mountain scene that wraps around the container uninterrupted conveys a sense of peace, harmony, and beauty. The careful etching lifts the figures out in such a careful and gentle manner like life peering through the misty air of the mountain. What a wonderful place to store tea.