Shinshu Soba — Nagano's Buckwheat Noodle Tradition

Nagano Prefecture (historically called Shinano or Shinshu) is Japan's premier soba-producing region, thanks to its high altitude, volcanic soil, and cold climate — ideal for growing buckwheat. Shinshu soba is prized for its fragrant, slightly nutty flavor and firm texture. Traditional soba is made with 80% buckwheat flour and 20% wheat binder (ni-hachi soba), hand-cut into thin noodles, and served cold with dipping sauce or hot in broth.

Matsumoto's old town (Nakamachi) is lined with soba shops ranging from humble family operations to refined establishments serving juwari soba (100% buckwheat, no wheat, extremely difficult to make). Soba is eaten at all times — breakfast, lunch, or dinner. Proper etiquette: slurp noisily to aerate the noodles and appreciate the aroma, drink the soba-yu (hot buckwheat cooking water) at the end mixed with leftover dipping sauce.