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Handmade Koikuchi Soy Sauce "心" (300ml x 3 bottles)

Sale price¥6,000

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Yamakou's signature product, "Kokoro" (Heart), is a naturally brewed koikuchi soy sauce, handcrafted using the methods passed down since the brand's founding in 1950. The name carries the same wish embedded in the brand itself — a wish for happiness as great as a mountain.

  • Method: Koji made using the traditional koji-tray method, slowly aged in cedar vats — the flavor of a labor-intensive, handmade process
  • Flavor: Aromatic and mellow, with rich depth — a classic, all-purpose koikuchi soy sauce
  • Recommended uses: Delicious poured over sashimi, egg-on-rice, or chilled tofu, and equally at home in simmered dishes
  • Volume: Three 300ml bottles, an easy-to-finish size that lets you enjoy the flavor at its best

When in doubt, this is the one to reach for — Yamakou's standard koikuchi soy sauce.

手づくり濃口醤油 心
Handmade Koikuchi Soy Sauce "心" (300ml x 3 bottles) Sale price¥6,000

The Maker’s Voice

Hiroyuki Toraiwa

Representative Director

Hiroyuki Toraiwa

It's flavorful and can be used in various dishes.

手づくり濃口醤油 心
ヤマコウ ロゴ

About the Brand

Yamakou

Founded in 1950, a soy sauce brand in Hamamatsu preserving the traditional koji-tray method and cedar-vat aging