seki kyuba sg2 r2 powder steel damascus 31 oishya japanese kitchen knife premium high carbon high end-2

How to Properly Maintain Japanese Knives

Caring for Japanese knives: the main blade types, why proper washing and drying matter, and how regular sharpening keeps the edge in good shape.

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What Is Oak Bog Wood?

What bog oak is and why Oishya uses it for Sakai Kyuba knife handles: oak buried in peat bogs for 2,500 years, slowly darkening and hardening over time.

Sakai Kyuba Japanese Kitchen Knife by Oishya: Mediterranean Blue

Wooden Handles: Maple Burl

Why wood makes a fine knife handle, and what stabilised maple burl is, a rare resin-impregnated wood that turns dense, tough and waterproof.

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What Japanese Knife To Buy?

Which Japanese knife to buy: start with a gyuto, then add a nakiri or petty, with notes on thinner blades, lower angles, and proper care.

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Knife History – Forging Methods

Knife history from Sakai, where tobacco-cutting blades grew from samurai swordmaking, plus the honyaki and kasumi forging methods explained.

HRC rockwell hardness kitchen knives

What Is Rockwell Hardness (A.Ka. HRC)?

Rockwell hardness (HRC) explained for kitchen knives, why most sit between 60 and 66, and the trade-off between edge retention and chipping.

All About Cooking Knives

What makes a chef’s knife good, where the gyuto came from, and how Japanese, French and German cooking knives compare for everyday use.

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Western Vs. Japanese Kitchen Knife Types

Western versus Japanese kitchen knife types compared, with the uses of the chef’s, Santoku, paring, bread, and carving knives explained.

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Are Japanese Knives Worth Their Price?

Why Japanese knives cost what they do, from hand forging and layered steel to the labour and artistry behind each collectible blade.