No, you should not put a wooden cutting board in the dishwasher. Even a single 70 ºC dishwasher cycle can cause a wooden board to warp, crack and lose its protective oils, which can cut its lifespan from 5 to 10 years down to just a few months.
Why a wooden cutting board should stay out of the dishwasher
Wood and bamboo are natural, porous materials. A dishwasher combines three things that are tough on them: high heat, strong detergents and long soaking. Together, these attack the natural fibres and any protective oil on the surface.
Here is what typically happens if you put a wooden or bamboo board in the dishwasher several times:
- Warping: The board absorbs water unevenly, then dries too fast, so it twists or bows. A 45x35cm board can rock on the worktop instead of lying flat.
- Cracking and splitting: Repeated hot cycles dry the wood out, which can open up deep cracks that trap food and moisture.
- Rough, raised grain: The surface becomes fuzzy and harder on your knives.
- Shorter lifespan: A board that could last 5 to 10 years with hand washing may need replacing within a year.
So if you want a long lasting board like the Deer & Oak Large Bamboo Board DNO-BCB-LG to stay flat and smooth at 45x35cm and 1.8kg, it needs gentle hand washing, not a dishwasher cycle.
How to clean a wooden cutting board safely
If the dishwasher is out, what is the safest way to clean a wooden cutting board after everyday cooking? Here is a simple routine that works for bamboo and hardwood boards.
- Wash immediately: Rinse off food within 5 minutes of use so stains do not set.
- Use hot, soapy water: Wash by hand with a soft sponge and standard washing up liquid for 30 to 60 seconds per side.
- Rinse and dry: Rinse under hot running water, then dry straight away with a clean tea towel.
- Stand upright to air dry: Leave the board on its edge so air reaches both faces. This helps prevent warping.
For raw meat or fish, you can add an extra step:
- Spray or wipe the surface with a mix of 1 part white vinegar to 4 parts water, leave for 2 minutes, then rinse and dry.
Deer & Oak boards such as the Bamboo Double Pack come pre oiled, which helps them resist moisture from day one. With this routine, you can comfortably use them daily without worrying about the dishwasher.
Deep cleaning and deodorising without a dishwasher
Sometimes a board needs more than a quick wash, especially after onions, garlic or raw meat. You still do not need a dishwasher to get it properly clean.
Use this simple deep clean once every 1 to 2 weeks, or whenever the board smells or looks dull:
- Salt scrub: Sprinkle 1 to 2 tablespoons of coarse salt over the board.
- Lemon rub: Cut a lemon in half and use the cut side to scrub the salt into the surface for 1 to 2 minutes.
- Rest: Leave the salty lemon juice on the board for 3 to 5 minutes.
- Rinse and dry: Rinse with warm water, dry with a towel, then stand upright.
This lifts stains, removes odours and freshens the surface without harsh chemicals or extreme heat. It is suitable for all Deer & Oak wooden boards, from the 38x28cm Medium Bamboo to the 45x35cm Large Acacia Board.
Why some woods cope better than others
Not all wooden boards behave in the same way. Dense hardwoods and quality bamboo will tolerate moisture better than soft, cheap woods, although none of them belong in a dishwasher.
Here is how our main materials compare when you care for them by hand:
- Moso bamboo: Used in our Large Bamboo Board DNO-BCB-LG and Medium Bamboo Board DNO-BCB-MD. It is naturally hard, light and less thirsty than many woods, which helps it dry quickly.
- Carbonised bamboo: Used in the Carbonised Bamboo Board DNO-CBB-LG. It is heat treated for a richer colour and slightly higher weight at 1.9kg, with similar care needs.
- Acacia wood: Used in the Large Acacia Board DNO-ACB-LG and Medium Acacia Board DNO-ACB-MD. It is a dense hardwood that feels reassuringly solid at up to 2.1kg and resists scoring from knives.
All of these will reward you with years of use if you keep them out of the dishwasher and follow a simple care routine.
How often should you oil a wooden cutting board
Oiling is the step many people skip, yet it is the main reason some boards last 10 years while others give up after 12 months.
As a guide:
- For a new board, oil it once a week for the first month.
- After that, oil every 4 to 6 weeks, or whenever the surface looks dry or patchy.
How to oil your board:
- Make sure the board is completely dry, usually after at least 12 hours upright.
- Apply a thin layer of food safe mineral oil or board balm with a clean cloth.
- Rub in small circles over both faces and all edges for 1 to 2 minutes.
- Leave to soak in for at least 4 hours, ideally overnight, then wipe away any excess.
Our boards are pre oiled, including the Carbonised Bamboo Board, so they start off with a good level of protection. Regular top ups keep them more resistant to splashes, stains and the odd puddle around the sink.
Can you ever risk a dishwasher cycle for wood
From a care point of view, the honest answer is no. If you value the board, do not put it in the dishwasher, even once. One 90 minute hot cycle can undo several careful oiling sessions and may cause permanent warping.
If you absolutely must use the dishwasher for hygiene reasons, then a solid plastic or composite board is a better choice for that specific task. Use wood for prep and serving, and plastic for the dishwasher heavy jobs.
Deer & Oak wooden boards: key specifications
Here is a quick comparison of our main wooden and bamboo boards, all designed for hand washing and regular oiling rather than dishwashers.
| Product | SKU | Size (cm) | Weight | Material | Typical use | Price |
|---|---|---|---|---|---|---|
| Large Bamboo Board | DNO-BCB-LG | 45 x 35 | 1.8kg | Moso Bamboo | Everyday chopping, family meals | £34.99 |
| Medium Bamboo Board | DNO-BCB-MD | 38 x 28 | 1.2kg | Moso Bamboo | Smaller kitchens, veg prep | £24.99 |
| Carbonised Bamboo Board | DNO-CBB-LG | 45 x 35 | 1.9kg | Carbonised Bamboo | Serving and chopping, darker finish | £39.99 |
| Large Acacia Board | DNO-ACB-LG | 45 x 35 | 2.1kg | Acacia Wood | Heavier prep, carving joints | £44.99 |
| Medium Acacia Board | DNO-ACB-MD | 38 x 28 | 1.5kg | Acacia Wood | Everyday chopping, smaller worktops | £34.99 |
| Bamboo Double Pack | DNO-BCB-2PK | 45 x 35 + 38 x 28 | 3.0kg | Moso Bamboo | Two board system for raw and cooked | £49.99 |
Who this is for
Ideal for: Home cooks and families who are happy to spend 2 to 3 minutes hand washing and drying a board after use, and to oil it every 4 to 6 weeks. If you want a solid, natural surface that protects your knives and can last 5 to 10 years with simple care, a Deer & Oak wooden or bamboo board is a sound choice.
Not recommended for: Anyone who insists on putting all kitchen items in the dishwasher every time, or who prefers a board that can be sterilised at very high temperatures daily. In those cases, a plastic or composite board that is explicitly rated as dishwasher safe will suit you better.
FAQ
Q: What happens if I accidentally put my wooden cutting board in the dishwasher once?
A: One accidental cycle will not always destroy a board, but it can cause slight warping, raised grain or small cracks as it dries. Take it out as soon as you notice, dry it thoroughly, then apply two coats of food safe oil 12 hours apart to help it recover. Avoid repeating the mistake, as repeated cycles will usually shorten the board's life dramatically.
Q: Is bamboo safer in the dishwasher than solid wood?
A: Bamboo is often marketed as more water resistant, but it is still a natural, fibre based material that can swell, crack and lose its finish in a dishwasher. Boards like the Deer & Oak Large Bamboo Board and Bamboo Double Pack are designed for hand washing in hot soapy water, not machine cycles. Treat bamboo the same way you would a hardwood board.
Q: How do I disinfect a wooden cutting board without a dishwasher?
A: After washing with hot soapy water, you can wipe the board with a solution of 1 part white vinegar to 4 parts water and leave it for 2 to 5 minutes before rinsing and drying. For deeper cleaning, use coarse salt and half a lemon as a scrub. These methods reduce surface bacteria without the harsh heat and detergents of a dishwasher.
Q: How long should a good wooden cutting board last if I never put it in the dishwasher?
A: With regular hand washing, prompt drying and oiling every 4 to 6 weeks, a quality board made from bamboo or hardwood can last between 5 and 10 years in a busy home kitchen. Heavy daily use on both sides may shorten that slightly, while lighter use and careful storage can extend it beyond a decade.
Recommended Deer & Oak boards for long term use
If you are ready to commit to hand washing and want a board that will reward you with years of service, we suggest starting with one of these:
- For most households: The Large Bamboo Board DNO-BCB-LG at 45x35cm and 1.8kg gives you generous space without feeling unwieldy. It works well as your main prep board and can double as a serving board.
- For a two board system: The Bamboo Double Pack combines a 45x35cm and a 38x28cm board, ideal if you want one board for raw meat and fish and another for fruit, bread or cooked food.
- For a heavier, premium feel: The Acacia range offers boards up to 2.1kg that feel reassuringly solid under the knife and look smart on the worktop.
You can explore the full collection of wooden and bamboo boards on the Deer & Oak chopping board range or browse our current favourites in the bestsellers section. Whichever size you choose, keep it out of the dishwasher, and it will look after your ingredients and your knives for many years.