Care

Japanese knives are precision tools with hard, thin edges. Improper care damages them faster than any amount of use. Cleaning Hand wash only. Japanese knives go in the dishwasher — never. The high heat, detergent, and water pressure damage the handle, dull the edge, and can pit stainless steel. Wash immediately after use — acidic foods (citrus, tomatoes, vinegar) react with carbon steel Use warm water and mild dish soap Wipe from the spine to the edge (never across the edge) Dry immediately with a soft cloth — don’t air dry For carbon steel: wipe the blade with a thin coat of mineral oil after drying Cutting Surfaces Wood or soft synthetic cutting boards only. ...

Cast iron cookware — whether a Japanese tetsubin (teapot), a nabe (hot pot), or a Western skillet — requires seasoning to perform at its best. The process is the same regardless of the vessel. What is Seasoning? Seasoning is a layer of polymerized oil bonded to the iron surface. It’s not oil sitting on top — heat breaks the oil molecules into a hard, plastic-like coating that fills the iron’s porous surface. ...

Japanese knives are made of hard steel (typically 60–64 HRC), which means they take a finer edge than Western knives — but they also require different sharpening technique. Why Whetstones? Pull-through sharpeners and electric sharpeners damage Japanese knife edges. The hard, brittle steel can chip under the aggressive cutting action of mechanical sharpeners. Water stones (whetstones) are the only recommended method. Essential Stones For most home cooks, two stones cover everything: ...