Japanese Pasta Tradition — Somen, Hiyamugi, and Fine Noodles
Yamato Province (Nara Prefecture), Japan — somen production since 3rd century AD
Somen and hiyamugi are Japan's finest-gauge white wheat noodles, traditionally hand-stretched (tejime somen) through a laborious oil-stretching process that can take 2–3 days from initial dough to final dried noodle. Somen (under 1.3mm diameter) is strictly the summer noodle: served cold in iced water (hiyashi somen) with cold mentsuyu dipping broth, negi, and ginger; the most famous variety is Miwa Somen from Nara (Japan's oldest somen designation, made since the 3rd century AD), followed by Ibo no Ito from Hyogo and Ojika Somen from Nagasaki. Hiyamugi (1.3–1.7mm) is slightly thicker and represents a seasonal bridge. Nagashi somen — bamboo-flume flowing noodles where diners catch passing somen with chopsticks at ryokan restaurants — is the theatrical summer experience. Toso-no-kane (New Year morning somen) is traditionally eaten in some regions for longevity.