FAQ — Your Questions Answered, Your Craft Deepened
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Clarity, Confidence, and Connection for Every Japanese Knife User
Learning to use, care for, and appreciate a Japanese knife is a journey—one filled with new terms, new techniques, and sometimes, new challenges. Whether you are choosing your first Sakai blade, selecting the right cutting board, or sharpening with a whetstone for the very first time, questions naturally arise.
This FAQ hub exists to bring you clear, trustworthy answers, all grounded in centuries of Japanese craftsmanship and KIREAJI’s commitment to education.
Here, you will find:
・FAQ: Japanese Knives — how to choose, understand, and care for a blade made in the 600-year tradition of Sakai.
・FAQ: Cutting Boards — how the right surface protects sharpness, hygiene, and the soul of your cooking.
・FAQ: Whetstones — how to sharpen with confidence and build a deeper relationship with your knife.
Each guide distills practical knowledge while honoring the spirit behind it.
Because every question—no matter how small—is an opportunity to strengthen your craft, protect your tools, and grow your connection to Japanese knives.
Your journey continues here, one answer at a time. -
FAQ: Japanese Knives
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Your Guide to Understanding, Choosing, and Caring for Authentic Japanese Blades
A Japanese knife is more than a kitchen tool — it is the result of over 600 years of craftsmanship, refinement, and cultural philosophy. Yet for many cooks, the world of Japanese knives can feel overwhelming at first: so many shapes, steels, traditions, and rules of care.
That is why this guide exists.
Here, you will find clear answers to the most common questions asked by chefs and home cooks around the world. From selecting the right knife, to understanding why Sakai blades are trusted by Japan’s top professionals, to preserving the sharpness and beauty of your knife for decades — this FAQ brings clarity to every stage of your journey.
More than information, this page is an invitation to deepen your relationship with your knife.
Because the moment you understand why Japanese knives are made the way they are, your appreciation — and your technique — transform.
Step in with curiosity.
Leave with confidence — and a deeper connection to the spirit of Japanese craftsmanship. -
FAQ: Cutting Boards
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The Foundation That Protects Both Your Knife and Your Cooking
A cutting board may look simple, but in the world of Japanese knives, it is one of the most important tools in your kitchen. The board you choose — and how you care for it — determines not only the sharpness of your blade, but also the safety, hygiene, and pleasure of your daily cooking.
This guide answers the questions most often asked by cooks around the world:
How do you prevent a board from warping?
Is wood or plastic better for Japanese knives?
How do you keep a board clean without damaging it?
With Japanese knives, the cutting board is not just a surface — it is the stage on which your blade performs. The wrong material can dull even the finest edge. The right one allows your knife to glide smoothly, honoring the craftsmanship that has shaped Sakai blades for over six centuries.
In this FAQ, you will learn how to maintain the balance between board and blade:
how to clean, how to disinfect, how to dry, and how to avoid the common habits that shorten the life of both your knife and your board.
A well-cared-for cutting board is more than a tool.
It is a quiet guardian of your knife’s sharpness — and of the meals you create every day. -
FAQ: Whetstones
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Where Sharpening Becomes Connection — Your Guide to Honing the Japanese Way
Sharpening a knife is far more than a maintenance task.
It is the moment when you, your blade, and your craft meet at a single point of focus.
And the tool that makes this possible is the whetstone.
In Japan — especially in Sakai — sharpening is seen as the moment when a knife comes alive.
The blade shaped by the blacksmith is only complete when refined on stones by human hands.
That is why choosing the right whetstone, and caring for it correctly, is essential.
In this FAQ, we answer the questions asked most often by beginners and professionals alike:
How do you choose the right stone?
Why does mud appear when sharpening?
Should you rinse it off or keep working with it?
How much pressure is correct?
What do you do when a stone warps, cracks, or clogs?
Every answer is designed to give you clarity, confidence, and a deeper connection to your knife.
With the right whetstone, sharpening is not difficult.
It becomes a slow, mindful practice — one that protects your knife, strengthens your skill, and deepens your appreciation for the craftsmanship behind every blade.
A whetstone is more than a block of abrasive minerals.
It is the bridge between you and the knife you trust. -
Epilogue — Answers Are the Beginning, Not the End
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A Japanese knife is more than steel, a cutting board is more than a surface, and a whetstone is more than a sharpening tool.
Together, they form a quiet ecosystem — one built on respect, awareness, and care.
The questions in this FAQ exist because Japanese tools provoke curiosity.
They make you wonder:
Why is it made this way?
How do I honor it?
What does it teach me in return?
As you explore these answers, something begins to shift.
Techniques become habits.
Habits become understanding.
And understanding becomes appreciation.
That is the moment when you move beyond simply “using” your tools —
and step into a deeper relationship with craft, culture, and intention.
Whether you are holding a knife, rinsing a board, or sharpening on a stone, each action is an opportunity to practice attention and respect.
Through these small daily rituals, you become part of the story of Japanese craftsmanship — not by birthright, but by choice.
Let these answers guide you.
Let your curiosity lead you further.
And when the time feels right, share what you’ve learned with someone else.
Because this is how traditions stay alive —
not through instruction alone, but through people who care enough to carry them forward. -
Our Story
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Tradition of Sakai, in Your Hands
"Where can I find a truly great knife?"
We started KIREAJI to answer that question. While the number of skilled craftsmen is declining in Japan, many people overseas are seeking authentic blades. With that in mind, we carefully deliver each knife—bridging tradition and kitchens around the world. -