Carbonised bamboo chopping boards look gorgeous on the worktop and feel fantastic under the knife, but they do need a little care to stay that way. The good news? Once you know how to oil your carbonised bamboo chopping board properly, it takes minutes and makes a huge difference to how long it lasts.
In this guide we will walk through exactly what to use, how often to oil and the step by step method we recommend at Deer & Oak for keeping your board in top condition.
Why carbonised bamboo needs oiling
Carbonised bamboo is bamboo that has been gently heated to deepen the colour and bring out that rich, warm caramel tone. It is beautiful, but the process also opens up the fibres slightly. That means your board will happily soak up water, smells and stains if it is not properly sealed with oil.
Oiling your carbonised bamboo chopping board properly does three key things:
- Protects against moisture so the board is less likely to warp or crack
- Helps resist stains and smells from foods like beetroot, onions and raw meat
- Keeps the surface smooth so it is kinder to your knives and easier to clean
If you have ever had a board go fuzzy, split at the ends or smell a bit questionable no matter how often you wash it, chances are it was under oiled or oiled with the wrong product.
What oil should you use on a carbonised bamboo board?
This is where many people go wrong. Not all oils are suitable for a chopping board, especially one that will be in contact with food every day.
Use:
- Food grade mineral oil
- A specialist board oil or board cream that is food safe
Avoid:
- Olive oil, vegetable oil, sunflower oil and other cooking oils as they can go rancid and smell
- Flavoured or scented oils
- Varnish or furniture oils that are not food safe
At Deer & Oak we pre oil products like our carbonised bamboo boards with high quality, food safe oil so they arrive ready to use. You will still need to top them up occasionally, but you are starting from a very good base.
How often should you oil your carbonised bamboo board?
This depends on how often you cook and how you wash the board. As a simple rule of thumb:
- First month: once a week to build up a good oil barrier
- After that: once a month is usually enough for regular home cooking
- Heavy use (daily family cooking, lots of washing): every 2 weeks
You will know it is time to oil when the surface looks dry, feels slightly rough or water no longer beads on it but soaks straight in. If your board lives next to the hob or in a very dry kitchen, you may find it needs a bit more love.
Step by step: how to oil your carbonised bamboo chopping board properly
Here is the exact method we recommend for keeping carbonised bamboo in top condition.
1. Wash and dry the board thoroughly
Give the board a good wash in warm soapy water, rinse and then dry it with a clean tea towel. Stand it upright or on its side so air can circulate and let it dry completely. This part really matters. If any moisture is left in the fibres, it will get trapped under the oil.
Do not soak your board in the sink and never put it in the dishwasher. Both will shorten its life very quickly.
2. Choose your oiling spot
Lay down a clean tea towel, old pillowcase or sheet of baking paper to protect your worktop. Oiling can be a little messy and mineral oil can leave marks on some surfaces.
3. Apply a small amount of oil
Pour a small puddle of oil onto the board, about the size of a 10p coin. You can always add more. It is better to build up thin layers than flood the surface and have to wipe away half of it.
Use a soft lint free cloth, a piece of kitchen roll or a dedicated oiling pad and start working the oil over the surface. Go with the grain and cover:
- The main cutting surface
- All four sides
- The underside
Yes, oil both sides. It helps the board absorb moisture more evenly and reduces the chance of warping.
4. Let the oil soak in
Once the whole board is coated, leave it to sit. Twenty minutes is the bare minimum, but if you can, leave it for a few hours or even overnight. Prop it up on its side so air can get to both faces.
Carbonised bamboo is quite thirsty, especially when it is new. You may see areas where the oil disappears quickly. That is normal. You can add a second light coat to those patches while the board is still resting.
5. Wipe off any excess
After the oil has had time to soak in, use a clean dry cloth to buff off any excess from the surface. The board should feel smooth and nourished, not sticky or greasy. If it still feels oily after buffing, you probably used a bit too much. Just keep wiping until it feels right.
6. Let it rest before using
Ideally, leave the board for a few hours after buffing before you chop on it again. This lets any remaining surface oil settle and reduces the chance of it transferring to food.
How to tell if you are oiling correctly
If you are wondering whether you are actually oiling your carbonised bamboo chopping board properly, here are a few quick checks.
- Water test: drip a little water on the surface. If it beads into droplets, the board is well oiled. If it spreads and disappears, it is thirsty.
- Look and feel: a well oiled board has a gentle sheen and feels silky to the touch. It should not feel rough or furry.
- Smell: it should smell neutral or faintly woody. Any sour or greasy smell usually means the wrong oil has been used or the board has not been cleaned properly between oilings.
Extra care tips for carbonised bamboo boards
Oiling is only part of the story. A few daily habits will keep your board looking good for years.
- Clean straight after use: especially after cutting meat, fish, onions or garlic. Warm water, a mild washing up liquid and a soft sponge are all you need.
- Disinfect gently: for extra peace of mind, wipe with a solution of white vinegar and water, then rinse and dry. Avoid harsh bleach which can damage the fibres.
- Dry upright: lay the board flat on the worktop while it is wet and moisture can get trapped underneath. Standing it on its side lets air flow all around.
- Rotate your boards: if you cook a lot, it is worth having a small collection. Our bamboo chopping board sets are designed for exactly this, so you can use different boards for meat, veg and bread and give each one time to dry fully between uses.
When to replace your board
Even the best cared for board will not last forever. Deep cuts that trap food, cracks that go right through or warping that makes the board wobble are all signs it might be time for a new one.
If you love the feel of wood under the knife, you might also enjoy stepping up to a premium butcher's block or exploring our full range of chopping boards at Deer & Oak. All are pre oiled and ready to use, so you are starting with a well conditioned surface from day one.
Bringing it all together
Learning how to oil your carbonised bamboo chopping board properly is not complicated. Use the right food safe oil, apply it regularly, let it soak in and keep up with simple daily care. Do that, and your board will stay smooth, stable and beautiful for years of everyday cooking and weekend feasts.
And if anyone asks why your board still looks so good after all that chopping, you can quietly smile and say: “It is all in the oil.”