Last updated: March 3, 2024
The Allure of Kochi Bonito
Edo Proverb: "Pawn your wife for the first bonito of the season!"

Kochi Prefecture – at the mention of its name, many might envision the brave historical figure, Ryoma Sakamoto.
However, when it comes to food culture, Kochi is synonymous with "bonito."
Kochi Prefecture is renowned for its unique ways of eating bonito, such as raw consumption and salt-seared bonito (shio-tataki), which maximize the fish's freshness.
Let's embark on a journey to discover the secret behind why this bonito is exceptionally delicious compared to other regions.
Table of Contents
- The Wonder of Bonito Raised in Kochi's Waters
- The Mysterious Origins of Bonito Tataki
- The Deliciousness of Hatsugatsuo (First Bonito) and Modorigatsuo (Returning Bonito)
- Bonito Pole-and-Line Fishing
- Tosa Bonito, Delivered to You
- "Overly Particular" Bonito Tataki
- From Kochi to You: The Best Bonito
1. The Wonder of Bonito Raised in Kochi's Waters

Bonito from Kochi Prefecture, nurtured by the blessings of the Kuroshio Current.
Its freshness and exquisite taste are the fruits of Kochi's nature and the efforts of its people.
In this chapter, we delve into the background of its splendor.
Kochi Prefecture is located in the southern part of Shikoku, a region blessed with abundant nature.
Here, a wide variety of seafood is caught throughout the year, but bonito, in particular, can be said to be a symbol of Kochi's ocean.
Nurtured by the bountiful Kuroshio Current, bonito continues to captivate many gourmands with its freshness and rich flavor.
2. The Mysterious Origins of Bonito Tataki

The origin of bonito tataki remains shrouded in mystery, but its history is ancient, and it has colored Kochi's food culture with many anecdotes.
One theory suggests that bonito tataki originated in the Edo period as an ingenious method to circumvent a law prohibiting the consumption of raw fish to prevent food poisoning.
The people of Tosa discovered that by lightly searing the surface of the bonito, they could keep the inside raw while simultaneously bringing out the savory aroma of the exterior.
This technique, which preserves the original flavor of bonito while adding new texture and aroma, became deeply rooted in Tosa's food culture as an innovative method.
It is also praised as a technique to eliminate the unique odor of ocean fish and maximize the deliciousness of fresh bonito.
Thus, bonito tataki has been passed down as a distinctive food culture of Kochi Prefecture and continues to be loved by many to this day.
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<Browse our shop>
Rakuten - Tosa Kuroshio Suisan
Shopify - Tosa Kuroshio Suisan
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3. The Deliciousness of Hatsugatsuo (First Bonito) and Modorigatsuo (Returning Bonito)

In Kochi Prefecture, bonito has two seasons: spring and autumn.
Hatsugatsuo is bonito caught in spring, firm-fleshed with exquisite fat content.
Modorigatsuo, on the other hand, is caught in autumn, and having spent the summer, it has an even richer fat content, offering a more profound flavor.
4. Bonito Pole-and-Line Fishing

Pole-and-line fishing is a unique fishing method for maintaining freshness.
With pole-and-line fishing, bonito are caught one by one with care, resulting in less stress on the fish and a reduced tendency to spoil.
This allows us to process and deliver freshly caught bonito in the best possible condition.
5. Tosa Bonito, Delivered to You

Tosa Kuroshio Suisan strives to deliver this delicacy to everyone.
Our mission is to share the rich bounty of Kochi's seas with people across the country.
We hope you will enjoy Tosa Kuroshio Suisan's "bonito tataki" and various other seafood delights.
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<Browse our shop>
Rakuten - Tosa Kuroshio Suisan
Shopify - Tosa Kuroshio Suisan
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6. "Overly Particular" Bonito Tataki

Tosa Kuroshio Suisan's pride: our "overly particular" bonito tataki.
Our "bonito tataki" uses only "carefully selected" fresh bonito, and on the "very day" an order is placed, our artisans "carefully sear each piece" using traditional methods.
At Tosa Kuroshio Suisan, we use only "pesticide-free" straw for searing, and with our "unique" flash-freezing method, we deliver the umami intact, as if the bonito tataki was seared "that very day," bringing you "deliciousness" and "joy."
7. From Kochi to You: The Best Bonito

Please enjoy Tosa Kuroshio Suisan's "overly particular" bonito tataki.
We offer bonito tataki and various other seafood in our online shop.
Our wish is for Tosa's bonito to brighten your dining table and enrich your daily meals.
Please try the exquisite bonito tataki, nurtured by Kochi's nature, on Rakuten or Shopify.
We look forward to serving you.
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<Try it at our shop>
Rakuten - Tosa Kuroshio Suisan
Shopify - Tosa Kuroshio Suisan
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