TL;DR
Wooden spoons need three rules: wash them fast, never soak them, and never put them in a dishwasher. Water swells wood fibers and drying shrinks them again, and repeated cycles of that split the grain. Wash with hot soapy water and a brush, rinse, dry standing upright, and oil the wood roughly once a month.
Why water is the enemy
Wood is a bundle of fibers with channels running through it. Those channels absorb water, and absorbed water makes the fibers swell.
That swelling is not itself damage. The damage happens on the way back -- as the wood dries, the outer layer shrinks faster than the interior, and the resulting stress raises the grain and eventually opens cracks.
A quick wash wets only the surface, and the wood recovers. A long soak saturates the wood, and each saturation cycle does a little permanent damage. A dishwasher does the worst version of it: hours of hot water, alkaline detergent, and then a high-heat dry.
Wood tools are the main exception to the soak-and-scrub advice that works for metal, and our guide to cleaning kitchen tools without damaging them treats them as their own category for that reason.
What is the right way to clean a wooden spoon?
Wash it under hot running water with dish soap and a brush, taking about thirty seconds, then rinse and stand it upright to air dry. Do not let it sit in a sink, do not soak it, and do not put it in a dishwasher. Oil it when the wood starts to look dry.
Wash fast and get it out of the water
The whole method is speed. Run the tap hot, add dish soap to a brush, scrub the bowl and the handle, and rinse.
Do not leave a wooden spoon lying in a sink of dishwater while you do other things. That is a soak by another name, and it is how most wooden spoons get ruined.
Use a brush rather than a sponge. Bristles get into the grain and into the joint between bowl and handle on a carved spoon. A sponge glides over both.
For stuck-on food, hold the spoon under hot running water and scrub -- do not put it in the sink to loosen. If something truly will not budge, a plastic bench scraper or the back of a spoon lifts it off dry.
Drying upright, not flat
Stand wooden spoons handle-down or bowl-up in a crock or rack so air reaches all sides. Lying flat on a towel keeps one face wet for hours, and uneven drying is exactly what warps a spoon.
Give them a few hours before putting them in a closed drawer. A drawer full of damp wood is where a musty smell starts.
Never dry a wooden spoon in an oven, on a radiator, or in direct sun on a windowsill. Fast, uneven drying causes checking -- fine surface cracks that then hold food.
Oiling: what to use and how often
Oiling replaces some of what washing removes and slows water absorption. Roughly once a month for spoons in regular use is a sensible rhythm; more often if the wood looks pale, chalky, or feels rough.
Use food-grade mineral oil. It does not go rancid, it is inexpensive, and it is the standard recommendation for wooden kitchenware. A blend of mineral oil and beeswax works too and leaves a slightly more water-resistant surface.
Do not use cooking oils -- olive, vegetable, canola, or nut oils all oxidize and turn rancid over weeks, leaving a sticky surface and a stale smell. Nut oils also raise an allergen concern in a shared kitchen.
The method: make sure the spoon is completely dry, rub oil in generously with a cloth, let it sit for an hour or overnight, then wipe off the excess. The same routine applies to how to clean a wooden cutting board and to how to clean a rolling pin.
Stains, odor, and raised grain
Tomato, turmeric, and beet stain wood, and much of that staining is permanent. It is cosmetic and does not mean the spoon is unclean.
For odor -- garlic, onion, fish -- scrub with a paste of coarse salt and a cut lemon, rinse quickly, dry upright, then oil once dry. Keep the contact brief; this is a scrub, not a soak.
For raised or rough grain after many washes, sand lightly with fine sandpaper in the direction of the grain, wipe the dust off, and oil. That smooths the surface back down and closes it up again.
Do not soak wooden spoons in bleach. Chloride does nothing helpful for wood, it can bleach the color unevenly, and mixing bleach with any other cleaner is genuinely dangerous.
When a wooden spoon should be retired
Retire it when there is a crack you can see into, when the bowl has split, when the surface is fuzzy and stays fuzzy after sanding and oiling, or when it holds an odor that a salt scrub and oiling do not fix.
A cracked wooden utensil has interior surfaces that cannot be cleaned, and that is the practical standard: a food-contact surface has to be cleanable. Source: FDA Food Code guidance on cleanable food-contact surfaces.
Well-kept wooden spoons last many years, which is more than can be said for most kitchen tools. Thirty seconds of washing and a monthly oiling is the whole maintenance program. For related wooden and porous tools, see how to clean a mortar and pestle, and our house cleaning services page covers the wider kitchen.
FAQ
Can you put wooden spoons in the dishwasher?
No. A dishwasher subjects wood to hours of hot water and alkaline detergent, then a high-heat dry, and that cycle of saturating and shrinking splits the grain. Wash wooden spoons by hand in about thirty seconds under hot running water and stand them upright to dry.
How long can a wooden spoon soak?
It should not soak at all. Even leaving one lying in a sink of dishwater while you do other dishes saturates the wood, and each saturation cycle causes a little permanent damage. Wash it under running water and get it out of contact with water immediately.
What oil should you use on wooden spoons?
Food-grade mineral oil, or a mineral oil and beeswax blend. Both stay stable indefinitely. Never use olive, vegetable, canola, or nut oils, which oxidize and turn rancid within weeks, leaving a sticky surface and a stale smell, and which raise allergen concerns in shared kitchens.
How often should wooden spoons be oiled?
About once a month for spoons in regular use, and sooner if the wood looks pale or chalky or feels rough. Apply oil to a completely dry spoon, let it absorb for an hour or overnight, then wipe off the excess with a clean cloth.
How do you get garlic or onion smell out of a wooden spoon?
Scrub it with a paste of coarse salt using a cut lemon as the scrubber, rinse quickly under hot water, and stand it upright to dry. Oil it once fully dry. Keep the whole process brief -- this is a scrub, not a soak, and prolonged wetting is what damages wood.
When should you throw away a wooden spoon?
When it has a visible crack or split, when the surface stays fuzzy after light sanding and oiling, or when an odor persists after a salt scrub. Cracks create interior surfaces that cannot be cleaned, and a food-contact surface has to be cleanable to be safe.
Wooden tools reward small habits. If you would rather hand the whole kitchen off, every home is different, so the real number depends on size, condition, and what you want covered. Get a quote and we will walk you through it.