Storing knives without ruining them

Reading time ≈ 8 minutes

People obsess over cutting technique and boards, then throw the knife in a drawer with the peeler. It is the least glamorous part of owning a good blade and it does more damage than anything that happens on the board.

Two things ruin an edge in storage: contact and moisture. Every method below is really just a different answer to those two.

1.The ranking

From best to worst

Method	Edge safety	Drying	Watch out for
Saya (wooden sheath)	Excellent	Poor if put away damp	Trapping moisture
Magnetic rack	Very good	Excellent — air on all sides	Slapping the blade on
In-drawer tray	Very good	Good	Damp drawers
Knife block, horizontal slots	Good	Moderate	Dragging the edge on slot walls
Knife block, vertical slots	Moderate	Poor — slots never dry	Edge resting on the base
Edge guard (plastic sleeve)	Good	Poor	Sealed moisture, hidden rust
Loose in a drawer	Terrible	Good	Everything

2.Magnetic racks

The best everyday option for a knife in regular use, for one reason that has nothing to do with the edge: the whole blade is exposed to air. Nothing dries a carbon knife more reliably than hanging it where air can reach both faces.

The edge itself never touches anything, the knife is visible so you reach for the right one, and it takes no drawer space.

Doing it properly

• Wooden-faced racks, not bare steel. A magnet behind a wood face holds just as well and cannot chip the blade. Exposed metal magnets are the whole risk of this method.
• Land the spine first, then roll the blade flat onto the magnet. Slapping the knife on edge-first is how people chip a blade on the one storage method that should never chip it.
• Pull it off by rolling, not by dragging the edge sideways along the face.
• Not above the hob. Grease and heat both find their way onto the blades.
• Check the fixings can hold real weight. A rack that falls takes every knife with it.

3.Knife blocks

The traditional answer, and it depends entirely on which kind you have.

Horizontal-slot blocks — where knives lie flat — are good. The blade rests on its side, the edge touches nothing, and the slot is wide enough not to scrape.

Vertical-slot blocks — the classic angled wooden block — have two problems. Sliding a knife in and out drags the edge along the slot wall, dulling it a little every time. And the slots are deep, narrow and unventilated: a blade that goes in slightly damp stays damp, which is a serious problem for carbon steel and not a great one for stainless.

Universal blocks filled with plastic rods or bristles solve the scraping and are easy to clean. They are the best of the block options and the least attractive; that is the trade.

Whatever the type, store the block where it can dry, clean it out occasionally, and never insert a knife that is not completely dry.

4.In-drawer trays

A slotted wooden or bamboo insert that holds each knife in its own channel. Quietly one of the best solutions: blades cannot touch each other, the edge sits clear, nothing is on show, and access is easy.

The catch is the drawer itself. Kitchen drawers next to a dishwasher or under a sink get humid, and a closed drawer does not ventilate. If you own carbon steel, check the tray occasionally for the first month and make sure nothing is developing where you cannot see it.

5.Saya and edge guards

A saya is a fitted wooden sheath — traditionally magnolia, which is soft, close-grained and gentle on steel. It is the best possible protection for the edge, and the right choice for a knife that is stored rather than used daily, or one that travels.

It is also the method with the sharpest failure mode. A sheath is an enclosed space: put a blade away even slightly damp and the moisture has nowhere to go. On carbon steel that is how you find rust weeks later on a knife you thought was safe.

The rule is absolute: bone dry before it goes in the saya. For carbon steel, a wipe of camellia oil first is sensible if the knife will sit for weeks.

Plastic edge guards protect just as well and cost far less, but they trap moisture even more effectively than wood, which cannot absorb any. They are fine for transport and poor for long storage.

6.Loose in a drawer

Worth stating plainly, because it is still the most common storage method in most kitchens.

Every time the drawer opens and closes, the knife slides and knocks against whatever else is in there — a vegetable peeler, a masher, another blade. Each contact is a small chip or roll in an edge that was ground to fifteen degrees. Nothing dramatic happens; the knife simply seems to lose its sharpness far faster than it should, and no amount of sharpening keeps up.

There is also the obvious point: reaching blind into a drawer of loose blades is how people cut themselves.

If a proper solution is not possible today, a cheap edge guard is a large improvement over nothing.

7.The moisture problem

Every storage decision comes back to this. A knife put away wet will corrode whatever it is stored in, and the more protective the storage, the worse the outcome — because protection means enclosure, and enclosure means the moisture stays.

Practical version:

• Dry the blade and the ferrule join where blade meets handle. That seam holds water and is where rust most often starts on an otherwise well-kept knife.
• Leave a freshly washed carbon knife out on a rack for a few minutes before putting it into a saya or block.
• Do not store knives directly above a kettle, dishwasher or hob.
• Wooden handles want the same treatment as blades: dry, never soaked, and a drop of oil once or twice a year.

8.Five quiet mistakes

1. Leaving the knife on the board overnight. Not storage, but it is where a lot of knives spend the night. Food acids sit on the steel for hours.
2. Putting it away damp. The single most damaging habit, and the easiest to fix.
3. Bare metal magnetic strips. Cheap, effective, and they chip edges on contact.
4. Standing knives edge-down in a jar or crock. The edge takes the full weight of the knife against a hard base.
5. Storing a knife that needs sharpening. A rolled or chipped edge corrodes faster, because the damaged metal has more exposed surface. Fix it, then put it away.

9.The short version

Nothing should touch the edge, and nothing should be put away wet. A wooden-faced magnetic rack satisfies both and is the easiest habit to keep. A saya is better protection and less forgiving of a damp blade. A drawer full of loose knives satisfies neither, and quietly costs you the edge you paid for.

Sharpening and care, steel by steel →
Patina — how carbon steel earns its colour →