Knife Care & Storage

A good knife that is looked after badly cuts worse than a cheap knife that is looked after well. That is not a moral point, it is a mechanical one: the apex of an edge is a few microns wide, and almost everything that happens to a knife in a normal kitchen is capable of deforming it. The rules below are in order of how much difference they make.

1. Never the dishwasher

The single most damaging thing you can do. Three separate mechanisms are at work: the blade knocks against racks and other items, which rolls or chips the edge; dishwasher detergent is alkaline and mildly abrasive, which etches and dulls the finish; and repeated heat and moisture cycles swell and shrink handle materials, loosening rivets and degrading wood and pakkawood.

A soft Western knife survives this with a rolled edge and a tired handle. A hard Japanese knife at 60+ HRC can come out genuinely chipped from a single cycle. Hand-wash with warm soapy water and a cloth, dry immediately, put it away. Fifteen seconds.

2. Stop scraping the board with the edge

Everyone does this: chop an onion, then use the blade to sweep the pieces into a pan. Dragging a sharpened apex sideways across a hard surface rolls it over immediately — it is arguably the fastest way to dull a knife that exists, and people do it thirty times a day without noticing.

Turn the knife over and scrape with the spine. Or use a bench scraper, which is the correct tool and costs almost nothing. This one habit change will visibly extend how long your knives stay keen.

3. The right board, and the wrong ones

The wood-versus-plastic argument is largely a hygiene debate, not a knife one: both are kind to an edge. What matters is avoiding the bottom two rows. A glass cutting board will take a brand-new Japanese knife from keen to dull in one session.

4. Store it so the edge touches nothing

Loose in a cutlery drawer is the worst option and the most common. Every time the drawer opens, blades slide into each other and into forks.

• Magnetic strip. Our preference: visible, dries the blade, no slot to trap moisture. Place the spine against the magnet first and roll the blade down; slapping the edge on flat is how people chip knives on the thing meant to protect them.
• Knife block. Fine, and slots collect crumbs and moisture. Insert spine-down if the slot orientation allows. Blocks with horizontal slots or loose rod fills avoid the problem.
• In-drawer tray or blade guards. The right answer for a small kitchen. Cheap plastic edge guards cost very little and turn a normal drawer into safe storage.

5. Dry it, especially if it is carbon

Stainless resists corrosion; it does not ignore it. A stainless blade left wet in a sink, or with salt, lemon juice or tomato sitting on it for hours, can pit or spot. Rinse, dry, store.

Carbon steel is another matter entirely. It reacts within minutes: cut an onion and the blade grays, which is a patina— a stable oxide layer that is largely protective and entirely normal. What is not fine is red rust, which appears if the blade is left wet. Carbon knives must be dried immediately after every use, and a thin wipe of food-safe mineral or camellia oil is worth it before storing one for a while.

6. Hone often, sharpen occasionally

Care is the half of maintenance that stops damage. Honing is the half that reverses it. As you cut, the apex rolls to one side; a few strokes on the right rod bends it back, and the knife feels new again in ten seconds.

Match the rod to the steel — a grooved steel rod for softer Western knives, a fine ceramic rod for hard Japanese ones, which chip rather than bend under an aggressive rod. When honing stops working, the edge is worn rather than rolled and it needs a stone. The distinction is set out in sharpening vs honing, and the rods are compared on the honing steels page.

Four things that quietly ruin knives

• Twisting the blade to lever an avocado stone out or pop a joint apart. Lateral force is what a thin blade is worst at; hard steel chips.
• Cutting frozen food or anything with bone in it with a thin knife. Let it thaw, or use a heavier blade.
• Leaving it in the sink under other washing up. Dangerous for your hands and bad for the edge.
• Cheap pull-through sharpeners. The carbide slot scrapes strips of metal off and leaves a rough, short-lived edge. Once in an emergency is survivable; as a routine it eats the knife. See the sharpening systems page for the honest comparison.

For soft Western knives

Wüsthof 9-inch Honing Steel

A honing rod does not sharpen — it realigns a rolled edge between sharpenings. This 9-inch forged steel rod from Wüsthof is the standard for keeping a German knife feeling keen day to day.

Compare all the rods

$35.00 · View on Amazon

Price as of September 5, 2026. #ad How we’re funded

For hard Japanese knives

Messermeister 12-inch Ceramic Sharpening Rod

The rod to own if your knives are Japanese. A grooved steel rod is too aggressive for a 60+ HRC edge; a fine 1200-grit ceramic rod abrades a whisker of metal instead of bending the edge back, which is what hard steel actually needs between stone sessions.

Compare all the rods

$39.95 · View on Amazon

Price as of September 5, 2026. #ad How we’re funded