In a 2024 study, scientists found that brewing tea with a tea bag made from the plastic polypropylene released about 1.2 billion small pieces of plastic per milliliter of tea. That's a fair amount, said Mark R. Wiesner, a professor of civil and environmental engineering at Duke University. He emphasizes the importance of understanding the origins of microplastics in everyday items and advises caution in consumption practices but acknowledges the lack of conclusive evidence linking microplastic exposure to health harm.
Experts said that while it's good to be cautious about microplastic exposure, there isn't enough evidence to ditch your favorite tea just yet. They underline the complexity of exposure sources and effects, suggesting that people can continue enjoying their beverages while being mindful of the materials used in tea bags. There's an ongoing need for more research to ascertain potential health risks associated with these microscopic particles, especially as consumer awareness increases.
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