Plastic vs wood cutting board
Which cutting board should I actually be using?
The verdict
Wood, and this is one of the few kitchen questions with a direct measurement behind it. Chopping on a plastic board was estimated to generate tens of millions of microplastic particles per person per year, straight into the food. A wooden board generates wood.
These carry different evidence grades. Plastic cutting board is grade A and Wooden cutting board is grade B. One component of our score is measured release, which only earns points where a laboratory has actually counted particles — so a product nobody has tested scores lower than an identical one that has been. Part of the gap you are looking at is a difference in how much anyone has looked. Why we do it this way →
Where they actually differ
| Plastic cutting board | Wooden cutting board | |
|---|---|---|
| Measured particle generation | 14.5–71.9 million/year (PP), ~79.4 million (PE) | No plastic to generate |
| What knife marks do | Create a shedding surface that worsens with age | Close over; the board is resurfaced by sanding |
| Food safety reputation | Dishwasher-safe, which is its real advantage | Better than its reputation; hand-wash and dry |
| What to do today | Retire any board with deep grooves | Oil it occasionally, keep it out of the dishwasher |
Where this comparison stops being reliable
The annual figures come from a controlled chopping protocol extrapolated to a year, and real kitchens vary enormously. Bamboo and composite boards were not tested and many are resin-laminated, so they are not automatically the wood answer.
The full picture on each
Does Plastic cutting board have microplastics?
Yes, and this one is measured directly. Chopping on a polypropylene board was estimated to generate 14.5–71.9 million microplastic particles per person per year, and around 79.4 million for a polyethylene board — straight into the food being cut.
Full score breakdown and sources →
Does Wooden cutting board have microplastics?
No plastic to release. Wood was the comparison arm in the study that measured plastic boards, and it is the reason that study exists — a wooden board generates wood particles, which are not microplastics.
Full score breakdown and sources →
Neither of these is what you own
A comparison is between two product types. The item in your cupboard has its own packaging, its own age and its own condition. Scan it and get the same five-component score for the actual object.
Scan what I actually have