If you want your wooden board to last 5 to 10 years, the best oil for seasoning wooden cutting boards is food grade mineral oil, ideally finished with a natural wax blend. For a 45x35cm board that weighs around 1.8 to 2.1kg, a single seasoning uses about 15 to 20ml of oil, repeated 3 times for full protection.
Why food grade mineral oil is best for seasoning wooden cutting boards
Food grade mineral oil is stable, clear and odourless. It does not go rancid, even if your board lives on the worktop for 365 days a year. On a Deer & Oak Large Bamboo Board that measures 45x35cm and weighs 1.8kg, mineral oil soaks into the fibres and helps prevent splitting, cupping and deep staining from foods like beetroot or raw meat juices.
By contrast, many common kitchen oils such as olive, sunflower or rapeseed start to oxidise in weeks. On a 38x28cm board this can leave sticky patches and a sour smell that is almost impossible to scrub out. That is why we only recommend three oil types for seasoning:
- Food grade mineral oil for primary protection
- Fractionated coconut oil (food safe, non rancid) as an alternative
- Mineral oil plus wax blends for a tougher top coat
Every Deer & Oak board, from our 1.2kg Medium Bamboo to our 2.1kg Large Acacia, is pre oiled with food safe oil so you can start using it straight away. Regular top ups at home keep that barrier strong.
Oils you should avoid on wooden chopping boards
It is tempting to reach for whatever is in the cupboard, but some oils cause more harm than good. To keep a 45x35cm board safe and fresh for daily cooking, avoid:
- Olive oil, vegetable oil, sunflower oil, rapeseed oil These go rancid, especially if your kitchen sits at 20 to 24°C. On a heavy 2.1kg acacia board this can create sticky patches in less than 30 days.
- Nut oils such as walnut or peanut They can also go rancid and may trigger allergies.
- Flavoured or infused oils Garlic or chilli oils leave residues that are hard to clean and may harbour bacteria.
For seasoning, you want an oil that stays stable for years, not weeks. This is why mineral oil and fractionated coconut oil are the most reliable choices for all Deer & Oak wooden boards.
Step by step: how to season a wooden cutting board
Seasoning a board is simple and usually takes about 20 minutes of hands on time, plus overnight drying. For a 45x35cm board, plan on 15 to 20ml of oil per coat.
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Clean and dry the board
Wash the board with warm water and a small amount of mild washing up liquid. Rinse and dry with a towel, then let it air dry upright for at least 4 hours. The board must be completely dry before you oil it. -
Warm the oil slightly
Place the bottle of food grade mineral oil in a bowl of warm water for 3 to 5 minutes. Warm oil spreads more evenly and penetrates deeper into bamboo and acacia fibres. -
Apply a thin coat
Pour about 5ml of oil along one 35cm edge of the board. Use a clean lint free cloth or paper towel to spread it across the full 45x35cm surface, including the edges and any juice groove. Flip and repeat on the other side. -
Let it soak
Lay the board flat on a rack or prop it on its side. Leave it for 20 to 30 minutes. On denser acacia, such as our 2.1kg Large Acacia Board, absorption can take closer to 45 minutes. -
Wipe off excess
Use a dry cloth to remove any oil that is still sitting on the surface. The board should feel silky, not greasy. -
Repeat 2 to 3 times
For a new or very dry board, repeat this process 2 or 3 times in one evening, using a total of 15 to 20ml of oil. For a pre oiled Deer & Oak board, 1 to 2 coats are usually enough. -
Optional wax finish
After the final coat has soaked in overnight, you can rub on a thin layer of a food safe board wax (mineral oil plus beeswax or plant wax). This adds an extra moisture barrier and a subtle sheen.
How often should you oil a wooden cutting board?
For a board used 5 to 7 times per week, we recommend a quick inspection every month. When the surface looks dry, rough or pale in patches, it is time to oil. As a simple guide:
- Heavy use daily chopping: oil every 3 to 4 weeks
- Moderate use 2 to 3 times a week: oil every 6 to 8 weeks
- Occasional use serving board only: oil every 2 to 3 months
On our 45x35cm Carbonised Bamboo Board that weighs 1.9kg, a single 10ml top up every month can extend its working life towards the 8 to 10 year mark, provided you avoid soaking and dishwashers.
Deer & Oak wooden boards and seasoning compatibility
Every Deer & Oak board is designed to work with food grade mineral oil and wax care products. Whether you choose bamboo for lighter weight or acacia for a denser feel, the care routine stays the same.
Specifications table: Deer & Oak boards and seasoning needs
| Product | SKU | Size (cm) | Weight | Material | Price | Recommended oil amount per full seasoning | Typical oiling frequency |
|---|---|---|---|---|---|---|---|
| Large Bamboo Board | DNO-BCB-LG | 45x35 | 1.8kg | Moso Bamboo | £34.99 | 15 to 20ml (3 coats) | Every 4 to 6 weeks |
| Medium Bamboo Board | DNO-BCB-MD | 38x28 | 1.2kg | Moso Bamboo | £24.99 | 10 to 15ml (3 coats) | Every 6 to 8 weeks |
| Carbonised Bamboo Board | DNO-CBB-LG | 45x35 | 1.9kg | Carbonised Bamboo | £39.99 | 15 to 20ml (3 coats) | Every 4 to 6 weeks |
| Large Acacia Board | DNO-ACB-LG | 45x35 | 2.1kg | Acacia Wood | £44.99 | 20 to 25ml (3 coats, denser grain) | Every 6 to 8 weeks |
| Medium Acacia Board | DNO-ACB-MD | 38x28 | 1.5kg | Acacia Wood | £34.99 | 10 to 15ml (3 coats) | Every 6 to 8 weeks |
| Bamboo Double Pack | DNO-BCB-2PK | 45x35 + 38x28 | 3.0kg | Moso Bamboo | £49.99 | 25 to 35ml total (3 coats on both) | Every 4 to 8 weeks depending on use |
Product problem matching: which board and oil routine suits you?
Different kitchens have different problems. The right combination of board size, material and oiling routine solves specific frustrations:
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Problem: Knife marks and staining from daily prep
Solution: A 45x35cm Large Bamboo Board plus monthly mineral oiling. The lighter 1.8kg weight makes it easy to lift for cleaning, while regular oiling keeps the surface closed against tomato and curry stains. -
Problem: Board warping after washing
Solution: Switch to a thicker, denser board such as the 2.1kg Large Acacia Board and always oil both sides. Equal oiling on a 45x35cm surface helps the board dry evenly and stay flat. -
Problem: Not enough space for family cooking
Solution: The Bamboo Double Pack gives you a 45x35cm board for meat and a 38x28cm board for veg. Season both with 3 light coats of mineral oil so they stay smooth even with 3 or 4 chopping sessions a day. -
Problem: Dark boards looking dull after a few months
Solution: A 45x35cm Carbonised Bamboo Board treated with mineral oil plus wax every 4 to 6 weeks. The oil restores depth of colour while the wax adds a subtle low sheen.
Who this is for and who it is not for
Ideal for home cooks who use a wooden board at least 2 times a week, care about food safety and want a board to last 5 to 10 years with simple monthly maintenance. If you are happy to spend 15 minutes every few weeks applying 10 to 20ml of food grade mineral oil, you will get the most from a bamboo or acacia board.
Not recommended for people who want to put everything in the dishwasher, who rarely cook at home, or who prefer disposable plastic mats. If you do not want to oil a board at least every 2 to 3 months, a wooden board is unlikely to stay in good condition for long.
FAQ
Q: Can I use olive oil instead of mineral oil on my wooden cutting board?
A: It is not a good idea. Olive oil starts to oxidise quite quickly and on a 45x35cm board can turn sticky and rancid in a matter of weeks. Food grade mineral oil or fractionated coconut oil will stay stable for years and keep your board fresh.
Q: How do I know when my board needs to be oiled again?
A: Run a teaspoon of water across the surface. If the droplets soak in within 5 seconds instead of beading, the wood is dry and ready for oil. You may also notice the colour looking pale and the grain feeling slightly rough under your fingertips.
Q: Do Deer & Oak boards arrive pre seasoned?
A: Yes, all Deer & Oak bamboo and acacia boards are pre oiled so you can use them straight out of the box. We still recommend a home top up after 4 to 6 weeks, especially on larger 45x35cm boards that see daily use.
Q: Can I over oil my cutting board?
A: You can apply too much in one go, which leaves a greasy surface. Stick to 5 to 10ml per side on a 45x35cm board and always wipe off the excess after 20 to 30 minutes. Several thin coats are better than one heavy one.
Choosing your next board and getting started
If you are ready to commit to seasoning with food grade mineral oil, start by choosing a board that suits your space and cooking style. A 45x35cm Large Bamboo Board at 1.8kg suits most British kitchens, while a 2.1kg Large Acacia Board offers a weightier feel and richer grain.
You can explore our full range of chopping boards on the Deer & Oak board collection page, or pick up a value bamboo or acacia set if you like to keep separate boards for meat and veg. For shoppers who prefer Amazon, our carbonised bamboo board and bamboo board double pack both arrive pre oiled and ready for regular seasoning at home.
Whichever size you choose, the rule stays the same: a few teaspoons of the right oil, applied every month or two, can easily double the working life of your wooden cutting board.