How I Clean and Store My Knives After Every Service

I'll be honest with you — the first time I saw a chef throw a Japanese knife into the sink with a pile of other dishes, I nearly had a heart attack. That knife probably cost more than his weekly wage. Three months later, the tip had chipped and the handle had swollen. No surprises.

Cleaning and storing your Japanese knife properly takes about 90 seconds. It's the difference between a blade that lasts a lifetime and one that deteriorates within a year. Here's exactly what I do — after every single service.

Why Japanese Knives Need More Attention

Japanese knives are typically made from high-carbon steel — sometimes White Steel, Blue Steel, or layered Damascus. This steel is harder and holds a sharper edge than the stainless steel used in most Western knives. But it's also more reactive. Moisture, acidic foods like citrus or tomatoes, and even just leaving the knife damp for a few hours can cause rust spots to develop.

It's not fragile — it just requires respect. Which, honestly, is the right attitude to have toward any quality tool.

Step 1 — Wash It Immediately After Use

Don't let your knife sit. As soon as you're done using it, rinse it under warm water and wipe it down with a soft, non-abrasive sponge and a small amount of mild dish soap. That's it. No scrubbing, no soaking, no dishwasher — ever.

The dishwasher is the single fastest way to ruin a Japanese knife. The high heat loosens handles, the harsh detergents dull the steel, and the rattling chips edges. I've never put one of my knives in a dishwasher and I never will.

Step 2 — Dry It Completely

After washing, dry the blade thoroughly with a clean towel immediately. Don't leave it on a drying rack. Don't lean it wet against the counter. Dry it — blade, spine, handle, the junction where the handle meets the blade. Moisture loves to hide there.

In the restaurant, I keep a dedicated microfiber cloth just for my personal knives. It sounds fussy until you've watched a beautiful carbon steel blade develop a rust bloom from one night of sitting damp.

Step 3 — Store It Properly

Here's where most home cooks go wrong. Throwing a Japanese knife loose in a drawer — even with a cheap plastic guard — is a recipe for chipped edges and dulled blades. The blade should never be in contact with anything hard when it's stored.

The Three Best Storage Options

1. Wooden Saya Sheath — This is how professional Japanese chefs store and transport their knives. A saya is a custom-fit wooden sheath for the blade. It protects the edge perfectly and looks beautiful. My yanagiba lives in a saya when it's not in my hand.

2. Magnetic Wall Strip — For easy kitchen access, a magnetic strip is excellent. The knife hangs freely, nothing touches the edge, and it's immediately accessible during cooking.

3. In-Drawer Knife Block — If wall mounting isn't an option, a proper in-drawer block keeps blades separated and protected.

The Three Things to Never Do

• Never store a wet knife anywhere
• Never let blades touch each other in storage
• Never use a knife block with dirty slots — they act like sandpaper on your edge every time you insert and remove the knife

Final Thought

Your Japanese knife is a professional tool. The few seconds it takes to clean and dry it properly after every use will keep it performing the way it should for years. In my kitchen, looking after your knives is considered as important as knowing how to use them.

Treat it well and it'll do the same for you. 🔪