Suribachi and Surikogi — The Japanese Mortar

Japan — suribachi production concentrated in Banko-yaki (Mie Prefecture) ceramic tradition

The suribachi (grinding bowl) and surikogi (wooden pestle) are uniquely Japanese kitchen tools designed specifically for grinding sesame seeds, miso paste, and soft ingredients to a smooth paste. The suribachi's interior surface is covered with fine parallel ridges (kushi-me) that create the grinding surface — unlike a smooth Western mortar, the ridges grip and shear the material between pestle and bowl. This produces a paste with better cell rupture and a different, more emulsified consistency than the pounding action of a stone mortar. The surikogi is made from sanshō (Japanese pepper tree) wood, which is traditionally believed to impart a mild pleasant aroma during use and whose open, irregular grain provides friction. Suribachi is used for: grinding sesame for gomaae sauce; blending tofu for shira-ae dressing; making sesame-based dipping sauces; and mixing white miso with other flavourings for misoyaki sauces.

The suribachi is a tool, not a flavour — but the emulsification of sesame into a smooth paste in suribachi produces a different texture and flavour delivery than chopped or food-processed sesame