Microplastic-free cutting board: why wood and bamboo are the smartest choice

Every time you cut on a plastic cutting board, you scrape off tiny bits of plastic. They end up on your food. And eventually in your body. Researchers at UC Davis estimate that with normal use of a plastic cutting board, you ingest up to 50 grams of microplastics per year through your food.

Fifty grams. That’s the weight of ten sugar cubes. Per year. Just through your cutting board.

How do microplastics from your cutting board get into your food?

Plastic cutting boards are made from polyethylene (PE) or polypropylene (PP). Both materials are relatively soft. Every knife that passes over the surface cuts loose microscopically small plastic particles — invisible to the eye, but measurable in your food.

Heat makes it worse: putting a hot pan on a plastic board, or placing hot meat on it, speeds up the shedding. And a dishwasher wears down the surface even further.

Why wood is better

Wood has a property plastic doesn’t: it’s naturally antibacterial. The tannins in wood — especially teak, olive wood, and bamboo — absorb bacteria into the fiber structure, where they die off. This has been shown in multiple microbiological studies.

What’s more, a knife cuts into wood — not across it. The cut marks partly close up again as the wood springs back. The surface repairs itself. Plastic doesn’t.

Wood vs. bamboo vs. plastic: a comparison

How do you maintain a wooden cutting board?

A wooden cutting board needs a bit more attention than plastic — but not much.

• Wash by hand. Dishwashers dry out the wood and can make it split.
• Dry immediately. Letting it dry upright prevents warping.
• Oil every 1–2 months. Use food-safe oil (coconut oil, linseed oil, or special cutting board oil). Rub it in, let it soak in, pat off.
• Salt as an abrasive. Sprinkle coarse salt on the board, rub with half a lemon. Cleans and deodorizes without chemicals.

Separate boards for meat and vegetables

This applies to every cutting board — wood or plastic. Always use separate boards for raw meat/fish and for vegetables/fruit. Cross-contamination is the biggest food safety risk in the home kitchen.

Tip: color-code your boards. Red board for meat, green for vegetables. Or choose boards in different sizes so you can tell the difference right away.

Conclusion

A wooden cutting board is the conscious choice: no microplastics, naturally antibacterial, knife-friendly, and with proper care a product for life. Small purchase, big impact.

View Safecourt’s PFAS-free kitchen tools →