If you want your carbonised bamboo chopping board to last 5 to 10 years without cracking or warping, you should oil it lightly every 3 to 4 weeks. The best way to oil a carbonised bamboo board is to use a food safe mineral oil and follow a simple 7 step routine that takes about 10 minutes, plus overnight drying.
Why carbonised bamboo needs oiling
Carbonised bamboo is heated to give it that rich dark colour and a slightly softer feel under the knife. The heat treatment makes it a little more porous than natural bamboo, so it dries out faster if you wash it often. Regular oiling:
- Reduces the risk of hairline cracks and warping
- Helps repel water so the board dries evenly
- Makes food odours less likely to soak in
- Keeps the colour deep and even instead of patchy and dull
On a board like the Deer & Oak Carbonised Bamboo Board (DNO-CBB-LG, 45x35cm, 1.9kg), a proper oiling routine can easily add several years to its useful life.
What you need before you start
To oil a carbonised bamboo chopping board properly, you only need a few things:
- Food safe mineral oil or board oil (about 10 to 15 ml per side for a 45x35cm board)
- Clean, lint free cloth or paper towels
- Mild washing up liquid and warm water
- Optional: fine grain sanding pad (240 to 320 grit) for older boards
- A flat, dry surface where the board can rest overnight
Avoid olive oil, sunflower oil or other cooking oils. They can turn sticky and start to smell within weeks.
How to Oil a Carbonised Bamboo Chopping Board Step-by-Step
Here is a simple 7 step method you can repeat every 3 to 4 weeks, or whenever the surface looks dry and chalky.
Step 1: Wash the board thoroughly
Rinse your carbonised bamboo board under warm water and wash it with a small amount of washing up liquid and a soft sponge. Focus on any stains or food residue. Never soak the board in the sink, and do not put it in the dishwasher, as long exposure to water and heat can cause warping within a few months.
Step 2: Dry for at least 30 minutes
Pat the board dry with a clean tea towel, then stand it upright or on its edge so air can circulate around both faces. Leave it for at least 30 minutes, ideally 1 hour, until it feels completely dry to the touch. Oiling a damp board traps moisture inside the fibres, which can lead to swelling and dark water marks.
Step 3: Light sanding for older boards (optional)
If your board is more than 12 months old or shows knife marks, you can refresh the surface before oiling:
- Use a fine 240 to 320 grit sanding pad
- Sand gently along the grain, not across it
- Wipe away dust with a slightly damp cloth
- Let the board dry again for 15 to 20 minutes
This step is rarely needed on newer boards, especially if you started oiling them from the first month.
Step 4: Apply a measured amount of oil
Place the board flat on a towel. For a 45x35cm board like the Deer & Oak carbonised model, pour about 10 to 15 ml of mineral oil onto the surface. That is roughly a dessert spoon. Start at the centre and work outwards in circles with a cloth, covering every part of the face, including the edges.
The surface should look slightly glossy but not flooded. If oil is pooling, you are using too much.
Step 5: Repeat on the other side and edges
Flip the board and repeat the same amount of oil on the second face. Do not forget the edges and any juice groove, as these areas dry out fastest. For thick boards or butcher block styles, it is worth giving the edges a second light pass, as they are more exposed to water during washing.
Step 6: Let the oil soak in
Leave the board flat for 20 to 30 minutes. During this time the bamboo fibres will absorb most of the oil. After half an hour, check the surface. If there are dry patches, you can add a few more drops and rub them in. If there are wet patches, move on to the next step.
Step 7: Wipe off the excess and cure overnight
Use a clean dry cloth to buff the board, removing any oil that is still sitting on the surface. The board should feel smooth and lightly conditioned, not greasy. Stand it upright or on a rack and leave it to cure for at least 8 hours, ideally overnight, before you use it again.
How often should you oil a carbonised bamboo board?
For a board used daily:
- Oil every 3 to 4 weeks
- Or as soon as water no longer beads on the surface
For occasional use, every 6 to 8 weeks is usually enough. In a busy family kitchen, a carbonised board like the Deer & Oak DNO-CBB-LG can stay in good condition for 5 to 10 years with this schedule. If you notice roughness, raised grain or dull patches, bring oiling forward rather than waiting.
Product comparison: choosing the right board to oil
All wooden and bamboo boards benefit from the same oiling routine, but some materials and sizes suit different kitchens. Here is a quick comparison of popular Deer & Oak options.
| Product | SKU | Size (cm) | Weight | Material | Typical use | Price (RRP) |
|---|---|---|---|---|---|---|
| Large Bamboo Board | DNO-BCB-LG | 45 x 35 | 1.8kg | Moso Bamboo | Everyday chopping and veg prep | £34.99 |
| Medium Bamboo Board | DNO-BCB-MD | 38 x 28 | 1.2kg | Moso Bamboo | Smaller kitchens and side prep | £24.99 |
| Carbonised Bamboo Board | DNO-CBB-LG | 45 x 35 | 1.9kg | Carbonised Bamboo | Charcuterie, serving and daily chopping | £39.99 |
| Large Acacia Board | DNO-ACB-LG | 45 x 35 | 2.1kg | Acacia Wood | Heavier duty carving and serving | £44.99 |
| Medium Acacia Board | DNO-ACB-MD | 38 x 28 | 1.5kg | Acacia Wood | Everyday chopping in smaller spaces | £34.99 |
| Bamboo Double Pack | DNO-BCB-2PK | 45 x 35 + 38 x 28 | 3.0kg | Moso Bamboo | Separate boards for meat and veg | £49.99 |
If you specifically want the rich dark look of carbonised bamboo with the practicality of a large prep surface, the Deer & Oak carbonised bamboo chopping board is designed to be pre oiled from the factory, then topped up at home with the steps above.
Common problems oiling carbonised bamboo (and how to fix them)
Oiling is simple, but a few issues come up regularly. Here is how to link the problem to a clear fix:
- Board feels rough after washing: The grain has raised. Lightly sand with 240 to 320 grit, wipe clean, then oil both sides.
- Board has pale, dry patches: It is under oiled. Add a little more oil to those areas and let it soak for 30 minutes before wiping.
- Board smells stale: You may have used cooking oil. Wash with hot water and washing up liquid twice, dry thoroughly, then re oil with food safe mineral oil only.
- Board is starting to cup or warp: It has likely been soaked or only one side has been oiled. Always wash quickly, dry upright, and oil both faces evenly.
Who this is for and who it is not for
Ideal for:
- Home cooks who use a board daily and are happy to spend 10 minutes a month on care
- People who like the warm dark look of carbonised bamboo on the worktop
- Those who want a lighter 1.9kg board rather than a heavier 2.1kg hardwood option
- Hosts who use one board for both serving and chopping
Not recommended for:
- Anyone who always puts boards in the dishwasher and is unlikely to change that habit
- Commercial kitchens that need plastic boards for strict colour coding and high temperature sanitising
- People who never want to oil or maintain their board at all
- Those who regularly hack through bones, who may prefer a dedicated butcher block
FAQ
Q: What is the best oil to use on a carbonised bamboo chopping board?
A: The most reliable choice is food safe mineral oil or a board specific conditioning oil. These stay stable for years and do not go sticky or rancid. Avoid olive, rapeseed or nut oils, as they can develop an off smell and leave a tacky surface within a few weeks.
Q: How soon should I oil a new Deer & Oak carbonised bamboo board?
A: Deer & Oak carbonised boards arrive pre oiled, so you can use them straight away. After 3 to 4 weeks of regular use, check if water still beads on the surface. Once it starts to soak in quickly, follow the 7 step routine above to top up the protection.
Q: Can I use the same oiling method on acacia or natural bamboo boards?
A: Yes, the washing, drying, oiling and curing steps are the same for carbonised bamboo, natural bamboo and acacia. The main difference is frequency. Acacia is slightly denser, so many people find every 6 weeks is enough, while carbonised bamboo often benefits from every 3 to 4 weeks.
Q: How do I know if I have used too much oil on the board?
A: If the surface still looks wet and shiny after 30 minutes, there is more oil than the bamboo can absorb in one go. Simply buff the board with a dry cloth to remove the excess until it feels silky rather than greasy. Next time, use 5 ml less per side and see how the board responds.
Recommended Deer & Oak boards to pair with this routine
If you like the idea of a long lasting, well cared for board, here are a few Deer & Oak options that work especially well with the oiling method in this guide:
- Carbonised Bamboo Board DNO-CBB-LG, 45x35cm, 1.9kg for a dark, generous prep surface that doubles as a serving board. Available on Amazon UK: carbonised bamboo chopping board.
- Bamboo Double Pack DNO-BCB-2PK, 45x35cm + 38x28cm, 3.0kg if you want separate boards for meat and vegetables while using the same oiling routine. See the bamboo chopping board set.
- Large Acacia Board DNO-ACB-LG, 45x35cm, 2.1kg if you prefer a heavier hardwood feel for carving and serving. You can find acacia options in the Deer & Oak chopping board collection.
All these boards are designed to respond well to regular oiling, so once you have the routine in place, you can keep them looking and performing well for many years.