TL;DR: New pieces: oil monthly for the first three months. Established pieces: every six to eight weeks, or sooner if the wood looks pale and dry or water soaks in instead of beading. A slider that never gets washed needs oiling less often than a board that meets the sink weekly.
What oiling does
Oiling is replenishing the food-safe oils inside a wooden board or slider so the timber stays sealed, coloured and crack-resistant. Every wash and every dry week of weather pulls a little oil out of the grain; oiling puts it back before the wood dries enough to crack.
The products are simple: a liquid food-grade oil that soaks in deep, or a board butter, oil blended with beeswax, that adds a water-shedding surface layer on top.
Why it matters
Dry timber is where every wooden-kitchenware problem starts: cracking, cupping, staining, roughness and that tired grey look. The pieces that fail young are almost never faulty; they are unfed. A two-minute oiling every couple of months is the entire difference between a board that lasts three years and one that lasts fifteen.
For a mixer slider carrying a heavy machine, staying oiled also protects the surface from pressure marks under the mixer's feet.
How to know it is time
The colour test
Well-oiled timber looks rich and slightly deep, like it does when wet. When the surface turns pale, flat and chalky, the oil has gone.
The water test
Flick a few drops of water on the surface. Beading means sealed; soaking in within a minute means the grain is open and due for a feed.
The touch test
Dry wood feels rough and fibrous as the grain lifts. Smooth and silky means the oil is still doing its job.
How to oil a slider or board
- Wash and dry the piece, then let it air dry fully, overnight is ideal.
- Apply a generous, even coat of food-safe oil or board butter with a soft cloth.
- Work along the grain, covering edges, ends and the underside too.
- Leave it to soak in for several hours or overnight.
- Buff off any excess with a clean cloth until the surface feels dry to touch.
Common mistakes to avoid
- Using olive, canola or other cooking oils, which turn rancid in the grain over time.
- Oiling only the top face; unsealed undersides absorb moisture unevenly and cause cupping.
- Waiting for cracks before the first re-oil; by then the damage is structural.
- Applying oil to damp wood, which traps moisture beneath the new coat.
Frequently asked questions
What oil should I use on a wooden slider?
A food-safe mineral oil, a purpose-made board oil, or a board butter blending oil and beeswax. Avoid cooking oils from the pantry; they oxidise and go rancid inside the wood.
Can you over-oil a wooden board?
Not really. Timber takes what it needs and the rest sits on the surface, where you buff it away. The only real error is not wiping off the excess.
Does a mixer slider need oiling if it never gets wet?
Yes, just less often. Air and heat dry timber even without washing. A slider usually cruises on an oiling every two to three months, more in dry climates or heated kitchens.
How long after oiling can I use the board?
After an overnight soak and a buff, immediately. If the surface still feels oily, buff again with a dry cloth first.
Why is my board still pale after oiling?
Very dry timber can drink the first coat entirely. Apply a second, even a third coat over consecutive days until the surface holds a low sheen.
The bottom line
Six to eight weeks is the rhythm, and the wood itself tells you when it is thirsty: pale, rough, drinking water instead of shedding it. Our board and bowl butter care kit was made for exactly this routine, one tin covering your slider, board and bowl for months of feeds.