This is the comparison people actually run before buying a chopping board, and most of the answers online are written by someone selling one of the two. Here is the honest version, including the parts that do not favour wood.
The hygiene argument, settled as far as it can be
The case for plastic has always been that it is non-porous and dishwasher safe, so it can be sanitised properly. The case against wood is that it is porous, and porous sounds unhygienic.
The research complicates this. Work by Dean Cliver's team at UC Davis, still the most cited on the question, found that bacteria applied to wooden boards declined rapidly, while bacteria on plastic survived and could be recovered in larger numbers. Wood pulls moisture down below the surface, and bacteria left without surface moisture do not last.
The finding that matters most, though, is about wear. New plastic boards clean up well. Used, knife-scored plastic boards do not. Those grooves hold residue, and a dishwasher does not reliably reach into them. Since nobody buys a board to use it once, the used-board comparison is the relevant one.
Fair conclusion: wood is not less hygienic than plastic, and a heavily scored plastic board is probably worse than a well-maintained wooden one. Anyone claiming wood is dramatically more hygienic is overstating it. Both are safe if you clean them properly and keep raw meat on a separate board.
What plastic is genuinely better at
We sell wooden boards, and these are still true:
- Dishwasher safe. A real convenience, and wood will never match it.
- Cheap to replace. When a plastic board is worn, you replace it for very little.
- Light. Easier to lift, carry and store, which matters more than it sounds if you cook in a small kitchen.
- Colour coding. Separate boards for raw meat, fish and vegetables is genuinely good practice and easiest with cheap coloured plastic.
If what you want is a board you can throw in the dishwasher and stop thinking about, buy plastic. That is a reasonable decision and no amount of writing about grain will change it.
What wood is better at
- It is kinder to knives. Wood fibres part under the blade and close again. Hard plastic and glass blunt an edge noticeably faster. If you own knives worth sharpening, this is the strongest argument on the list.
- It can be repaired. Sand a scored wooden board with 120, 180 and 240-grit paper, re-oil it, and it is effectively new. Plastic cannot be resurfaced.
- It lasts far longer. A maintained wooden board runs for years or decades. A plastic board is a consumable.
- No microplastics. Cutting on plastic sheds particles into food. How much this matters is still being studied, and it is not zero.
- It can go on the table. A wooden board serves cheese, bread and snacks. A plastic one never leaves the kitchen.
The honest cost comparison
A plastic board costs less up front and gets replaced every year or two. A wooden board costs more and, cared for, does not. Over a decade the wooden board is usually cheaper, but only if you actually maintain it, and plenty of people do not.
Be honest with yourself about whether you will hand wash and oil something monthly. If the answer is no, the cheaper board is genuinely the better buy for you.
How to choose
Buy plastic if: you want dishwasher convenience, you need colour-coded boards for raw meat, or you would rather not maintain anything.
Buy wood if: you care about your knives, you want something repairable that lasts, you want a board that can serve as well as prep, or you would rather not cut on plastic.
Most kitchens want both. A cheap plastic board for raw chicken and fish, and a good wooden board for everything else. That is what we do, and it is a more useful answer than picking a side.
If you go with wood
Look for a board cut from a single piece rather than glued from strips, a glued joint is where boards usually fail. Check the thickness; anything under a centimetre flexes and warps. And read the care routine before you buy, not after: how to clean a wooden chopping board.
Our boards are single-piece acacia, oiled rather than sealed. You can read how they are made, or start with the Bergen Chopping Board.
