Mishima is a slip inlay technique where you carve or stamp fine lines into leather-hard clay, fill them with contrasting slip or underglaze, then scrape the surface clean so the colour stays only in the lines.
What Is Mishima?
The technique comes from Korean inlaid celadons of the Goryeo period and was later taken up in Japan, where the name mishima became common. It produces crisp, drawn lines that sit flush with the surface, more precise than painting and very different from sgraffito, where you scratch through a layer of slip.
The method is simple: carve your design at leather hard with a needle tool or fine loop tool, brush underglaze or coloured slip into the lines, let it firm up, then scrape away the excess with a rib or sharp tool. A damp sponge can tidy up any smudges, but too much scrubbing pulls the colour out.
Timing is everything. If the clay is too soft, lines smear; if too dry, scraping can chip or crack the surface. Mishima works on most clays and is often finished with a clear or celadon glaze so the lines show through.
It is a satisfying technique for beginners because it needs few tools and rewards patience rather than speed.
This pottery glossary entry from Le Studio Art Space is general educational content. Always follow the clay, glaze and kiln makers’ data for your own materials and equipment.