• Tuna

  • Dive into the art of tuna preparation with our detailed Japanese knife techniques, designed for the perfect culinary presentation.

Here are the steps for filleting tuna:

  1. Place the fish skin-side down on a cutting board and remove the bloodline.
  2. Cut away the red flesh.
  3. Make vertical cuts to create fillets.
  4. Remove the fatty parts.
  5. Cut away the abdominal bones that are attached to the red flesh.

To fillet tuna, start by placing the fish skin-side down on a cutting board and removing the bloodline. Then, cut away the red flesh and make vertical cuts to create fillets. Remove the fatty parts and cut away the abdominal bones that are attached to the red flesh.

Video Provided: Sabakeru Channel (part of the Nippon Foundation's "The Ocean and Japan Project")

The Origin of Craftsmanship

  • There is no finish line in the world of knives. It's a lifelong learning process.

  • Crafting knives is an endless journey. No matter how much you refine your skills, new challenges always arise, and you must keep learning. Every day is a series of trials and errors, where even the smallest mistake or insight can make a huge difference. That’s why, once you choose this path, you must be prepared to continue learning throughout your life.

  • And it’s through this accumulation of knowledge that true craftsmanship emerges. No matter how much experience you gain, it’s only by never forgetting your beginnings and continuing to learn that you can progress to the next level.

  • There is no finish line in knife making; what’s important is simply to keep moving forward. The insights gained along the way are what shape us as craftsmen and help us pass down our skills to the next generation.
Sakai Traditional Craftsmen Collection

KIREAJI's Three Promises to You

  • japanese_knife_made_in_Sakai

    1. Forged in the Legacy of Sakai

    From Sakai City—Japan’s renowned birthplace of professional kitchen knives—each blade is crafted by master artisans with over six centuries of tradition. Perfectly balanced, enduringly sharp, and exquisitely finished, every cut carries the soul of true craftsmanship.

  • 2. Thoughtful Care for Everyday Use

    Every knife includes a hand-fitted magnolia saya for safe storage. Upon request, we offer a complimentary Honbazuke final hand sharpening—giving you a precise, ready-to-use edge from day one.

  • 3. A Partnership for a Lifetime

    A KIREAJI knife is more than a tool—it is a lifelong companion. With our bespoke paid aftercare services, we preserve its edge and beauty, ensuring it remains as precise and dependable as the day it first met your hand.