Plastic kettles: Calls for warning labels after shock finding about microplastics leaching into boiled water
You could be drinking more than you bargained for in your morning tea and coffee.
New research has found nano and microplastics are leaching into water boiled in plastic kettles, sparking calls for safety warnings.
The highest levels are detected in the first few boils of a new kettle but tiny plastic particles are still found even after 150 boils, according to lead researcher Elvis Okoffo, from the University of Queensland’s Queensland Alliance for Environmental Health Sciences.
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By continuing you agree to our Terms and Privacy Policy.The study, published in npj Emerging Contaminants, found almost 12 million nanoparticles per millilitre — which equates to about three billion particles per 250ml cup.
After 150 boils, there were still 820,000 nanoparticles detected per millilitre, or 205 million per 250ml cup.
While the impact nano and microplastics in drinking water have on human health remains “poorly understood”, Dr Okoffo said people should be warned.
“Simple rinsing before first use is common, but it does not achieve the same level of removal as repeated cycles of boiling and discarding,’’ Dr Okoffo said.
“Many people may overlook or skip this step, highlighting the need for clearer product labelling and instructions.
“I would call on manufacturers, policymakers and regulators to inform consumers with safety guidelines or product labels warning about plastic particle release.
“Although particle concentrations drop with repeated use, our research shows there is a continuous, low-level exposure risk.’’
Dr Okoffo said the findings from the study filled an important knowledge gap about how plastic products used in homes can contribute to daily plastic exposure and how small, practical changes in everyday routines can reduce exposure to plastics.
“By combining better product design, improved labelling, and public awareness, we can help limit the amount of plastic entering both our bodies and the environment.’’
The Australian Competition and Consumer Protection, which is in charge of product safety in Australia has been contacted for comment.
