Is it safe to eat fresh produce washed with the same plastic-bristled brush for years?

What's actually in it

Cheap produce brushes have polypropylene or nylon bristles in a plastic handle. Scrubbing is friction, and friction breaks the bristle tips off as tiny fibers. The fibers end up on the vegetable you're washing, then in the cooking pot or salad bowl. An old brush, one that's been used hundreds of times, sheds much more than a new one. Dishwasher cycles break the bristles down faster too.

People use produce brushes because they want cleaner food. Ironically, the cleaning tool is adding contamination.

What the research says

A 2026 study in J Hazard Mater ran a comparative analysis of microplastic exposure from food and flagged kitchen tools as an often-overlooked source. The mechanical breakdown of plastic-bristled utensils contributes a measurable share of dietary microplastics. The effect is worst when the tool touches food directly, like a produce brush, sponge, or pasta server.

A natural-fiber produce brush (tampico or coconut bristles in a wooden handle) gets the job done without the shedding. These cost $10 to $15 at kitchen stores and last longer than the plastic version. For bigger produce, rubbing with your hands under running water handles most of the surface dirt. A baking soda soak (a teaspoon in a bowl of water for 15 minutes) removes more pesticide residue than any brush does.