Food · Seasonings
Sansho Pepper
山椒 (Sanshō)
Also known as: Japanese Mountain Pepper, Japanese Pepper
3Japanese suppliers ready to quoteView on the Sourcing platformWhy now · 2023 — ongoing
Sansho Pepper: The Tingling Spice Western Chefs Are Adopting
Sansho pepper (山椒) is now in everything from mass-market spice racks to global cocktails. Wakayama and Hyogo dominate; sourcing fresh-milled grade is the buyer's challenge.
Read the trend reportAt a glance
| Category | Food |
|---|---|
| INCI name | Not applicable (food use)↗ |
| Japanese labeling name | Not applicable (food use) |
| Common Japanese notations | 山椒, サンショウ, 山椒粉 |
| Origin | Plant-derived (Zanthoxylum piperitum dried fruit pericarp) |
| Typical functions | Aromatic seasoning (primary), Tingling-citrus mouthfeel (hydroxy-alpha-sanshool), Finishing spice for grilled and braised dishes |
| Regulatory status in Japan | Food regulated under the Food Sanitation Act. The cosmetic-grade fruit extract is separately listed under the JSCI labeling name dictionary as サンショウ果実エキス. |
Sansho (山椒, Zanthoxylum piperitum) is the native Japanese mountain pepper, used in Japanese cuisine for over a millennium. Its distinctive aromatic profile combines citrus-woody fragrance with the characteristic tingling mouthfeel attributed to the sanshool-family alkylamides. Wakayama Prefecture's Arida-gun region — home of the renowned Budō sanshō cultivar — is the country's premier production area, with secondary production in Hyōgo (Tamba) and Gifu.
Find OEM manufacturers
Browse Japanese OEM manufacturers that build products in this category. Filter by small lot, certifications, prefecture.
Classification
Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.
Product applications
Functions
Regulatory tags
Origin
Common OEM product categories
Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.
- Whole and ground pepper for culinary use
- Shichimi tōgarashi (seven-spice) blends
- Unagi-no-tare (eel sauce) accompaniment
- Specialty confectionery and chocolate pairings
Ingredient profile
Sansho pepper is the dried fruit pericarp of Zanthoxylum piperitum, a small deciduous tree native to the Japanese archipelago. Both the young green pods (mi-zanshō, harvested May–June) and the mature peppercorns (harvested August–October) are used, with the mature form most commonly milled into the familiar bright-green powder.
The Wakayama Budō sanshō cultivar — recognized for its grape-cluster fruiting habit (budō meaning grape) — produces a comparatively large, highly aromatic peppercorn that has long been treated as a premium grade. Tamba sanshō from Hyōgo is similarly esteemed for its aroma. Sansho is botanically distinct from the related Chinese huā jiāo (Zanthoxylum bungeanum), and the two should not be substituted on labels.
OEM applications
In Japanese cuisine, sansho is the defining finishing pepper for unagi (grilled eel) and a central component of shichimi tōgarashi seven-spice blends. The young pods are simmered as tsukudani and used to flavor chirimen-jako. Ground sansho is also paired with grilled chicken (yakitori), miso preparations, and an emerging category of specialty confectionery and chocolate.
Industrial users typically procure dried whole peppercorns (1–10 kg lots) or pre-milled powder (100 g – 5 kg), with 4–8 week lead times typical for Wakayama and Tamba origin material.
Regulatory classification in Japan
Food regulation under Food Sanitation Act. No category-specific restrictions for culinary use.
The cosmetic extract form (Zanthoxylum Piperitum Fruit Extract / サンショウ果実エキス) is separately listed in the JSCI labeling name dictionary and handled under cosmetic ingredient regulation.
Regulatory classification in other markets
| EU | Imported as a culinary spice; subject to general food import documentation. Cosmetic extract use is listed in CosIng under Zanthoxylum Piperitum Fruit Extract. |
|---|---|
| USA | Generally Recognized as Safe (GRAS) for food use as a spice. Cosmetic extract use falls under MoCRA. |
| China | Suppliers should verify the specific preparation against current food and cosmetic ingredient listings. |
| Korea | Permitted for culinary use; the related cosmetic extract is permitted under the KFDA / MFDS system. |
Market reference formulations
Example finished products will be added after each product's current full ingredient list has been verified. Regional cultivar branding (Budō sanshō, Tamba sanshō) is handled as descriptive production-region context rather than in ingredient names.
All brand names and product names referenced anywhere on this site are the property of their respective owners. Example entries are provided for informational purposes only and do not imply endorsement.
Seasonality & supply calendar
- Harvest months
- Fresh young leaves (木の芽): March – May; green pepper berries (青山椒 / 実山椒): May – June; ripe red berries: August – October
- Peak supply
- May – June (青山椒 peak harvest for processing)
- Off-season
- Year-round via dried-powder and brined stock; fresh narrowly seasonal
Source: 農林水産省 山菜統計 / 和歌山県. Wakayama 和歌山 (有田川町 ぶどう山椒 — about 60% national share; regional brand, NOT 農林水産省 GI-registered), Hyogo (朝倉山椒 / 養父市八鹿町朝倉 — ぶどう山椒の祖先品種; also NOT GI-registered) lead production.
Alternative ingredients
Related ingredients commonly evaluated as substitutes.
Quick answers
- What is Sansho Pepper?
- Sansho (山椒, Zanthoxylum piperitum) is the native Japanese mountain pepper, used in Japanese cuisine for over a millennium. Its distinctive aromatic profile combines citrus-woody fragrance with the characteristic tingling mouthfeel attributed to the sanshool-family alkylamides. Wakayama Prefecture's Arida-gun region — home of the renowned Budō sanshō cultivar — is the country's premier production area, with secondary production in Hyōgo (Tamba) and Gifu.
- What is the regulatory status of Sansho Pepper in Japan?
- Food regulated under the Food Sanitation Act. The cosmetic-grade fruit extract is separately listed under the JSCI labeling name dictionary as サンショウ果実エキス.
- What products typically use Sansho Pepper?
- Whole and ground pepper for culinary use / Shichimi tōgarashi (seven-spice) blends / Unagi-no-tare (eel sauce) accompaniment / Specialty confectionery and chocolate pairings
- Where does Sansho Pepper come from?
- Plant-derived (Zanthoxylum piperitum dried fruit pericarp)
- What is the INCI / JSCI labeling name for Sansho Pepper?
- INCI: Not applicable (food use) / JSCI: Not applicable (food use)
Related ingredients — substitutes, pairings, processing chain
Often used with
Ingredients frequently paired in the same recipe or formulation.
Same category
Other ingredients in the same sub-category.
Bonito Extract (Katsuobushi)
鰹節エキス
Shikuwasa (Citrus depressa)
シークヮーサー
Ago Dashi (Flying Fish Stock)
あごだし
Awase Dashi (Combined Bonito and Kelp Stock)
合わせだし
Black Vinegar (Kurozu)
黒酢
Katsuo Dashi (Honkarebushi — 2-Year-Aged Premium Bonito Stock)
本枯節かつおだし
Zanthoxylum Piperitum Fruit Extract
サンショウ果実エキス
Citrus Junos Fruit Extract
ユズ果実エキス
Citrus Sudachi Peel Extract
スダチ果皮エキス
Explore related ingredients
Used in similar product applications
Other ingredients commonly used in the same finished-product families.
Agar
寒天
Confectionery & snacksSeasonings & sauces
Alginic Acid
アルギン酸
Confectionery & snacksSeasonings & sauces
Bonito Extract (Katsuobushi)
鰹節エキス
Seasonings & saucesConfectionery & snacks
Japanese Honey (Domestic Honey)
国産はちみつ
Seasonings & saucesConfectionery & snacks
Kinako (Roasted Soybean Flour)
きな粉
Confectionery & snacksSeasonings & sauces
Sharing similar functions
Ingredients that overlap on functional benefit tags.
From the same origin
Other ingredients that share an origin classification.
Manufacturers mentioning this ingredient
Japanese OEM factories whose published profile references this ingredient. Auto-detected from manufacturer descriptions; verify capabilities directly.
Related guides & how-to
Related case studies
Regulatory guidance
Take the next step
FAQ for OEM buyers
Q. Is sansho the same spice as Sichuan pepper (huā jiāo)?
No. Japanese sansho is Zanthoxylum piperitum, while Chinese huā jiāo is most commonly Zanthoxylum bungeanum. Both belong to the same genus and share the sanshool-family alkylamides that produce a tingling mouthfeel, but they are botanically distinct species and should not be cross-labeled. The compound name 'sanshool' itself is derived from the Japanese term sanshō.
Sources · Last reviewed: 2026-04-26
Q. What compound is responsible for sansho's tingling sensation?
The tingling, vibrating mouthfeel is attributed primarily to hydroxy-α-sanshool, an alkylamide present across Zanthoxylum species. Published research indicates the compound activates somatosensory neurons through inhibition of two-pore-domain potassium channels (KCNK3, KCNK9, KCNK18), with additional agonist activity at TRPV1 and TRPA1. The result is a characteristic light-vibration sensation distinct from capsaicin's burning heat.
Q. Why is Wakayama Budō sanshō treated as a premium grade?
The Budō sanshō cultivar is grown principally in Aridagawa Town in Wakayama Prefecture and is named for its grape-cluster (budō) fruiting habit, with each berry larger than other cultivars. Wakayama is Japan's largest sansho-producing prefecture, and the Shimizu district within Aridagawa has historically been the dominant production area. Its thick flesh, small seed, and intense aroma underpin its premium positioning.
Sources · Last reviewed: 2026-04-26
Q. How is sansho regulated for cosmetic use in Japan?
The cosmetic-grade fruit extract is listed in the Japanese Cosmetic Ingredient Codex (JSCI labeling-name dictionary maintained by JCIA) as サンショウ果実エキス, corresponding to the INCI name Zanthoxylum Piperitum Fruit Extract. This is separate from culinary sansho, which is regulated under the Food Sanitation Act. Cosmetic and food forms are handled under independent regulatory frameworks and require separate documentation.
Sources · Last reviewed: 2026-04-26
Industry-knowledge claim — not yet pinned to a single primary source
Use cases
Shichimi tōgarashi seven-spice blend
- Positioning
- Heritage Japanese spice profile — sansho is one of the seven canonical components alongside chili, sesame, hemp/poppy seed, ginger, citrus peel, and nori. Blend dates to a 1625 Edo recipe at Yagenbori.
- Formulation notes
- Typical sansho proportion in a balanced shichimi is in the single-digit percent range; higher inclusion shifts the blend toward a tingling-forward profile suitable for noodles and yakitori finish.
Unagi (grilled eel) finishing spice
- Positioning
- Traditional accompaniment — finely ground sansho is the canonical finishing pepper for kabayaki-style grilled eel, where its citrus-woody aroma cuts through the richness of the tare-glazed fish.
Sources
Industry-knowledge claim — not yet pinned to a single primary source
Specialty confectionery and chocolate
- Positioning
- Modern Japanese craft positioning — sansho is increasingly used by craft chocolate and confectionery makers as a single-origin Japanese spice, paired with dark chocolate, caramel, or matcha to deliver an unfamiliar tingling note in dessert applications.
- Formulation notes
- Sansho's volatile aroma compounds are heat-sensitive; powder is typically incorporated post-temper or in finishing dustings rather than in the main melt.
Sources
Industry-knowledge claim — not yet pinned to a single primary source
Search the academic literature
Pre-filled queries for the major research databases. Opens in a new tab.
Official regulatory databases
External links to public Japanese / international regulatory authorities. We are not affiliated.
References
- 農林水産省 (Ministry of Agriculture, Forestry and Fisheries) food classification — sansho
- Wakayama Prefecture sansho production statistics
Last updated: 2026-04-25. Ingredient entries are reviewed at least annually against current regulatory listings.