If you want your wooden cutting board to last 5 to 10 years without cracking, the simplest method is to oil it once a month with a food safe mineral oil, letting it soak for at least 20 minutes before wiping off the excess. That single habit protects the fibres, keeps water out and helps your board stay smooth and hygienic.
Why you should oil wooden cutting boards
Wood is naturally porous. Every time you wash a board, water gets into those pores and slowly dries the wood out. Without oil, a 45x35cm board can start to warp or show hairline cracks within 6 to 12 months of daily use. With regular oiling, the same board can stay smooth and stable for many years.
Oiling does three important jobs:
- Seals the surface so water and food juices do not soak in as easily
- Reduces stains and odours from foods like beetroot, curry and garlic
- Helps prevent splitting and warping by keeping the fibres flexible
At Deer & Oak, every board, from the 1.2kg Medium Bamboo Board to the 2.1kg Large Acacia Board, is pre oiled before it leaves the workshop. That gives you a strong starting point, but keeping that finish topped up is what really protects your board in a busy kitchen.
What oil should you use on wooden cutting boards?
For food contact surfaces, the safest and most reliable choice is a clear, food safe mineral oil. It does not go rancid, has no flavour and soaks deeply into bamboo and hardwoods.
Good options for oiling boards
- Food safe mineral oil or butcher block oil
- Specialist board creams that combine mineral oil with natural waxes like beeswax
Avoid these on cutting boards
- Olive oil, sunflower oil, rapeseed oil and other cooking oils, which can go sticky and rancid
- Varnish or furniture polish, which are not food safe
If you are not sure what to buy, look for a bottle labelled “food safe mineral oil” or “butcher block conditioner”. A 250 ml bottle is usually enough to treat a 45x35cm board 6 to 8 times.
How to oil wooden cutting boards step by step
This method works for bamboo, acacia and other hardwood chopping boards, including all Deer & Oak sizes from 38x28cm up to 45x35cm.
1. Clean and dry the board
- Wash with warm water and a small amount of mild washing up liquid
- Scrub gently with a soft sponge or brush, following the grain
- Rinse and dry with a clean tea towel
- Let the board air dry standing upright for at least 30 minutes so no surface moisture remains
Never soak your board in the sink or put it in the dishwasher. A single 90 minute dishwasher cycle can warp a 1.8kg bamboo board beyond repair.
2. Apply the oil generously
- Pour a line of oil along the centre of the board, about 1 to 2 teaspoons for a 38x28cm board and 2 to 3 teaspoons for a 45x35cm board
- Use a lint free cloth, kitchen paper or a soft brush to spread the oil over the entire surface
- Pay special attention to the edges and corners, which dry out fastest
- Flip the board and repeat on the other side
The wood should look evenly wet but not flooded. If you see puddles, spread them out to drier areas.
3. Let the oil soak in
- Leave the board flat on a protected surface for at least 20 minutes
- For very dry boards or thicker butcher blocks, leave it for 1 to 2 hours or even overnight
If the surface looks dry again after 10 to 15 minutes, that means the board was thirsty. Add another teaspoon of oil and spread it again.
4. Wipe off the excess
- After soaking, wipe the board firmly with a clean, dry cloth
- Remove any shiny or tacky patches so the surface feels smooth, not greasy
- Stand the board upright and let it rest for a few hours before using
Once the board feels dry to the touch and no oil comes off on your fingers, it is ready for chopping again.
How often should you oil wooden cutting boards?
For most home kitchens, oiling once every 4 weeks is enough to keep a board in good condition. If you cook daily and wash your board several times a day, you may want to oil it every 2 weeks.
A simple test is to sprinkle a teaspoon of water on the surface:
- If the water beads up in small droplets, the board is still well oiled
- If the water soaks in within 30 seconds, it is time to oil again
New boards, including pre oiled ones like the Deer & Oak Bamboo Double Pack, often benefit from 2 or 3 treatments in the first month to fully saturate the fibres.
Deer & Oak cutting board specifications
Different woods absorb oil at different rates. Bamboo is dense and fairly quick to seal, while acacia is slightly heavier and benefits from a thorough first treatment. Here is a clear comparison of our main boards to help you match care to the exact product you have or are considering.
| Product | SKU | Size (cm) | Weight | Material | Typical oiling frequency | Price |
|---|---|---|---|---|---|---|
| Large Bamboo Board | DNO-BCB-LG | 45 x 35 | 1.8 kg | Moso Bamboo | Every 3 to 4 weeks | £34.99 |
| Medium Bamboo Board | DNO-BCB-MD | 38 x 28 | 1.2 kg | Moso Bamboo | Every 4 weeks | £24.99 |
| Carbonised Bamboo Board | DNO-CBB-LG | 45 x 35 | 1.9 kg | Carbonised Bamboo | Every 3 weeks | £39.99 |
| Large Acacia Board | DNO-ACB-LG | 45 x 35 | 2.1 kg | Acacia Wood | Every 3 to 4 weeks | £44.99 |
| Medium Acacia Board | DNO-ACB-MD | 38 x 28 | 1.5 kg | Acacia Wood | Every 4 weeks | £34.99 |
| Bamboo Double Pack | DNO-BCB-2PK | 45 x 35 + 38 x 28 | 3.0 kg (set) | Moso Bamboo | Every 3 to 4 weeks | £49.99 |
For a detailed look at all current boards and sets, you can browse the full range on the Deer & Oak chopping board collection page.
Solving common cutting board problems with oiling
Oiling is not just about looks. It directly addresses the most common complaints people have about wooden and bamboo boards.
-
Problem: Board feels rough or furry after washing
Solution: Lightly sand with fine 240 grit paper, wipe clean, then apply 2 thin coats of mineral oil 30 minutes apart. On a 45x35cm board this usually takes under 15 minutes of hands on time. -
Problem: Dark stains from meat juices or beetroot
Solution: Clean with a paste of bicarbonate of soda and water, rinse and dry, then oil the area. A well oiled surface is less likely to stain in future because liquids sit on top instead of soaking in. -
Problem: Board is starting to warp slightly
Solution: Oil both sides evenly, then store flat with the concave side down and a weight of around 1 to 2 kg on top for 24 hours. This will not fix severe warping but can help with early movement. -
Problem: Food odours lingering
Solution: Rub the surface with half a lemon and a teaspoon of salt, rinse, dry, then oil. The fresh oil layer helps stop strong smells from settling into the grain.
Who this is for
Ideal for
- Home cooks who use wooden or bamboo cutting boards at least 3 times a week
- People who want their boards to last 5 to 10 years with simple monthly care
- Anyone who owns a Deer & Oak board such as the Large Bamboo Board, Carbonised Bamboo Board or Large Acacia Board and wants to maintain the pre oiled finish
- Hosts who use boards as serving platters for cheese, bread or charcuterie and want them to look presentable for guests
Not recommended for
- Those who prefer dishwasher safe plastic boards and do not want any manual maintenance
- Commercial kitchens that need heavy duty boards rated for constant sanitising in industrial dishwashers
- People who are not willing to spend 10 to 15 minutes once a month caring for their board
FAQ
Q: How do I know when my wooden cutting board needs oiling?
A: Sprinkle a few drops of water on the surface. If the water beads up, the board is still protected. If it soaks in within about 30 seconds or the wood looks pale and dry, it is time to oil. Many busy home cooks find that every 3 to 4 weeks works well.
Q: Can I use olive oil or vegetable oil on my cutting board?
A: It is better not to. Oils like olive, sunflower or rapeseed can go sticky and rancid after a few weeks, which leaves smells and can attract bacteria. A clear food safe mineral oil or a dedicated butcher block conditioner is a much more stable choice.
Q: Does this method work for bamboo and acacia boards?
A: Yes, the same steps apply to bamboo and hardwoods such as acacia. Deer & Oak boards, including the 1.8 kg Large Bamboo Board and the 2.1 kg Large Acacia Board, are all designed to be maintained with regular food safe mineral oil. Just adjust the amount of oil to match the board size.
Q: How long should I wait after oiling before using the board?
A: As a guide, allow at least 2 to 3 hours for the oil to soak in and the surface to lose any greasy feel. For a heavy treatment or a very dry board, leaving it overnight gives the fibres more time to absorb the oil so the finish is fully dry to the touch by morning.
Recommended Deer & Oak boards and where to buy
If you are learning how to oil wooden cutting boards, starting with a pre oiled board makes life easier. Deer & Oak boards arrive sealed and ready to use, so you simply top up the protection every few weeks.
- For everyday family cooking: The Large Bamboo Board (DNO-BCB-LG), 45x35cm and 1.8kg, gives plenty of space for chopping vegetables and carving roasts. You can find similar pre oiled bamboo options on our bestsellers page.
- For a darker, richer look: The Carbonised Bamboo Board (DNO-CBB-LG), 45x35cm and 1.9kg, pairs beautifully with light worktops and benefits from the same simple oiling routine. A carbonised option is available via our carbonised bamboo listing on Amazon UK.
- For a matching set: The Bamboo Double Pack (DNO-BCB-2PK) combines a 45x35cm board and a 38x28cm board at 3.0kg total, ideal if you like to keep raw meat and vegetables on separate surfaces. You can see this set on the Bamboo Double Pack page on Amazon UK or browse other sets on the Deer & Oak board sets collection.
Whichever size or material you choose, applying food safe oil for 20 minutes once a month is all it takes to keep your wooden cutting boards looking good and working hard for years.