How to Clean and Care for a Wood Cutting Board

Wood boards last decades if you treat them right, and warp or crack in a year if you do not. The difference is mostly about water, and it comes down to a few habits that take seconds once you have them.

Everything below applies to our boards and to any solid wood or bamboo board you own. If your piece is a sign or decor rather than something you serve on, skip to the bottom.

Which Side to Use

Our boards are two-sided on purpose. The front carries the burned design and goes on the table. The back is plain, and that is the side to cut on.

Cutting on the burned side will scar the design, just like a knife scars any board. Serve on the front, prep on the back, and it keeps looking right.

How to Clean a Wood Cutting Board

Wash it by hand with warm water and a little dish soap. A sponge or dish brush works, and so does a bit of scrubbing. What matters is what comes next.

Dry it right away with a towel, then stand it on edge to finish. Do not lay it flat on the counter to dry, because the underside stays wet while the top dries, and that uneven drying is what makes a board cup.

Avoid three things, and almost every warped board comes from one of them. Never put it in the dishwasher. Never leave it soaking in the sink. Never leave it lying flat on a wet counter overnight.

Can a Wood Cutting Board Go in the Dishwasher?

No, and this is the one people get wrong most often. Dishwashers combine standing water, high heat, and a long drying cycle, which is close to the worst thing you can do to wood. Boards come out swollen, and once they dry, they split along the glue lines or crack along the grain. The damage is not fixable.

This applies to bamboo too, including boards sold as dishwasher safe.

How to Sanitize and Disinfect a Cutting Board

For everyday use, hot soapy water is enough. Wood is naturally less hospitable to bacteria than people assume, and a board washed and dried properly doesn’t need more than that.

After raw meat, poultry, or fish, go further. Wash with hot, soapy water first, then wipe the surface with a solution of one tablespoon of unscented bleach per gallon of water. Let it stand for a few minutes, rinse, and dry immediately.

If you would rather not use bleach, undiluted white vinegar works as a milder sanitizer, or use 3% hydrogen peroxide, wiped on and rinsed off. Neither is as thorough as the bleach solution, so treat them as an occasional extra step rather than a substitute after raw chicken.

Use one method at a time, and never mix bleach with vinegar. The combination releases a toxic gas.

Do not use a scouring pad or steel wool. They won’t clean the board, and they scratch the surface unevenly, giving bacteria somewhere to sit.

Stains and Smells

For stains, scrub with coarse salt and half a lemon (cut side down), then rinse and dry. For stubborn stains, make a paste of baking soda and water, leave it on for ten minutes, then scrub.

Onion and garlic smells come out the same way. Salt and lemon, then rinse and dry. If a smell lingers, the board is probably due for oiling, since dry wood soaks up odors more easily.

Mold on a Wood Cutting Board

Black or green spots usually mean the board has been staying damp, often from being stored flat or put away before it was fully dry.

Surface mold comes off with the salt-and-lemon treatment, followed by a vinegar wipe and a thorough dry. If the discoloration has gone into the grain and does not lift, the board has absorbed water deeper than you can reach, and it is time to replace it, at least for food use.

The fix is prevention. Dry it on edge, store it standing up or on a rack, and keep it out of a closed cupboard while it is still damp.

Caring for a Bamboo Cutting Board

Bamboo is a grass rather than a hardwood, and it behaves a little differently.

It is harder than many woods used for boards and less porous than most, so it resists staining and absorbs less liquid. That is good. The tradeoff is that it is a little tougher on knife edges, so expect to sharpen a bit more often. It also dries faster, which means bamboo swings between wet and dry more than hardwood does, and it can split if you let it get very dry.

Clean it exactly as above. Hand wash, dry immediately, and stand it on edge. The one difference is to stay on schedule with the oiling, because bamboo shows dryness sooner than maple or walnut. If the surface looks pale or chalky, it is overdue.

Bamboo is not dishwasher safe regardless of what a label says.

Oiling

Oiling is what keeps most water out of the wood, and it is the single thing most likely to decide whether your board lasts. Re-oil every three to four weeks with regular use, more often in winter when indoor heat dries everything out.

Use food-grade mineral oil, butcher block oil, or a board conditioner made for the purpose. Skip olive, vegetable, and other cooking oils, which go rancid inside the wood and leave it sticky and smelly.

Apply a thin coat with a clean cloth, let it soak in for a few hours or overnight, then wipe off the excess.

Oil both faces and the edges, not just the side you cut on. Treating only one face makes the board take on and release moisture unevenly, which is another way boards end up cupped.

Signs and Decor Pieces

Decor pieces are finished with a protective film rather than an oil, and they are cared for completely differently.

Dust them with a dry or barely damp cloth. That is all they need. No soaking, running water, abrasive pads, or ammonia-based cleaners, bleach, or all-purpose sprays, which can cloud or strip the finish.

Keep them out of direct sunlight, which fades the burn over time, and away from big swings in humidity. That means not directly above a stove, not in a bathroom, and not in an unheated garage unless the piece was finished for outdoor use.

These are not food surfaces and should never be used for cutting. Some are made from plywood or MDF, which are not suitable for food contact, no matter what is on the surface.