Mochi Preparation Tools Usu Kine Traditional

Japan — mochitsuki documented since Yayoi period; community ceremony since at least Nara period

Traditional mochi making uses a stone mortar (usu) and wooden mallet (kine) in a rhythmic two-person process: one person pounds steamed mochi rice (mochigome), the other folds and turns the mass between strikes. The pounding (mochitsuki) gelatinizes the glutinous rice starch, creating the characteristic sticky, elastic, glossy mass. The ceremony of mochitsuki is performed at New Year and special occasions — watching the rhythm and coordination required makes it a community event. Modern home use of mochi makers (using spinning blade) approximates the result but lacks the gelatinization quality achieved by impact pounding. Rice must be glutinous short-grain mochigome — regular rice cannot make mochi.

• Korean rice cake making uses same stone mortar pounding technique — same glutinous rice base → Tteok rice cake pounding (dobyeong) Korean
• Glutinous rice preparation for New Year — steamed in southern China, pounded in Japanese/Korean tradition → Nian gao (New Year rice cake) making Chinese

Neutral, slightly sweet glutinous rice taste — primary vehicle for fillings and toppings