Interdisciplinary

Kitchen sponges release harmful microplastics into your dishes while cleaning

AI Insight

Kitchen sponges release microplastics into the environment during normal use as they deteriorate from washing dishes. The amount of microplastic shedding varies significantly depending on the type of sponge material. Researchers calculated that the cumulative release from millions of households using these sponges could amount to hundreds of tons of microplastics per year.


This finding identifies a previously underappreciated source of microplastic pollution originating from routine household activities. The research could inform consumer choices about sponge selection and potentially drive development of alternative dishwashing products that shed fewer microplastics.


Kitchen sponges release microplastics as they wear down during everyday use, with some sponge types shedding far more than others. Researchers estimated that millions of households could collectively release hundreds of tons of microplastics annually.

Source: Your kitchen sponge is releasing microplastics every time you wash dishes