Why source from Japan
Nagano's high-altitude buckwheat cultivation produces premium soba flour; Togakushi soba carries regional GI-equivalent positioning.
Key spec
Buckwheat ratio 80% (Togakushi standard) vs 70% (typical); rutin 2-7 mg/100g cooked (vs ~1 mg in white flour); gluten-low for buckwheat-dominated blends.
Typical end-product
Dried soba retail export, fresh-frozen for Japanese-restaurant supply, premium gift-grade.
At a glance
- Suppliers listed
- 1 supplier
- Typical MOQ
- 10–100 kg dried; 25–500 kg fresh-frozen
- Typical lead time
- 4–8 weeks
- Regions of origin
- Nagano (Togakushi, Kaida-Kogen, broad Shinshu region)
- Category
- Food ingredients
- Harvest season
- Buckwheat August – October; noodle production year-round
- Japan regulatory status
- Food product; multiple Nagano regional brands
- Japanese name
- 信州そば
- Romaji
- 信州そば
About this ingredient
Premium buckwheat-flour noodle from Nagano (the historical 'Shinshu' province). Four types of Nagano soba (Togakushi, Kaida-Kogen, Yamatoyama, Tobishima) are recognised as MAFF-registered or regional brand specialties. Nagano produces over 50% of Japan's buckwheat (Hokkaido leading recently); the high-altitude cool climate favours premium buckwheat cultivars used for the Shinshu soba. Distinct from existing 'buckwheat-extract' (functional-extract) entry; this is the noodle product.
Regulatory status
| Japan | Food product; multiple Nagano regional brands |
|---|---|
| EU | Food import; gluten / wheat-flour labelling |
| United States | GRAS; FDA Prior Notice; gluten labelling for blend ratios |
| China | GACC; allergen labelling |
Looking for alternatives?
Common reasons buyers swap to a different ingredient — and what we'd suggest based on this ingredient's profile.
Vegan / plant-based alternatives
Shinshu Soba (Buckwheat Noodle) is animal-derived. If you need a non-animal source with similar functions, consider:
Sansho Pepper
山椒
Zanthoxylum piperitum source; INCI Zanthoxylum Piperitum Fruit Extract; MOQ from 1–10 kg (dried peppercorn); 100 g – 5 kg (powder).
Plant-based· shares 3 categories
Wasabi Powder
山葵粉末
Wasabia japonica (Eutrema japonicum) source; INCI Wasabia Japonica Root Powder; MOQ from 1–10 kg (powder); 100 kg+ (bulk paste).
Plant-based· shares 3 categories
Shio Koji
塩麹
MOQ from 20–100 kg.
Plant-based· shares 3 categories
When does it make sense to swap an ingredient? Read the swap guide →
Japanese suppliers
Hakubaku Co., Ltd.
株式会社はくばく
Fujikawa, YamanashiEst. 1941English supportExport experienceBuckwheat soba noodle production
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Last updated: 2026-05-05