Researchers found that compounds in black and green tea leaves acted like “little Velcro” hooks on lead molecules. By Alexander Nazaryan Tea leaves pull heavy metals from water, significantly ...

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Researchers from Northwestern University have found that tea leaves absorb certain harmful metals from water, such as lead and cadmium, preventing us from ingesting them. The researchers emphasize ...

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“We’re not suggesting that everyone starts using tea leaves as a water filter,” Northwestern University researcher and senior author Vinayak P Dravid said in a press release. “In fact, we often ...

Next, they added different types of tea leaves – both loose and commercially bagged – to those samples, then allowed them to steep for anywhere from a few seconds up to 24 hours. Once the ...

Vinayak Dravid (right), professor of materials science at Northwestern University, oversaw a team of scientists that discovered tea leaves can absorb and filter out harmful metals, including lead.

The authors then added tea leaves or bags and steeped them for various time periods, from seconds to 24 hours, before measuring how much of the metals remained in the water. “Nylon tea bags are ...

A farmer shows newly-picked tea leaves at a tea garden of an agricultural demonstration park in Wuzhong District, Suzhou City, east China's Jiangsu Province, March 17, 2025. Harvest season for ...

If you're worried about microplastics in tea bags, there are safer alternatives, such as loose-leaf tea and tea bags made with cellulose or paper. It’s unclear whether drinking tea exposes people to ...

In Moroccan culture, the tea is made by steeping mint and green tea leaves and sugar, and is commonly served at all times of day. In North America, early Native Americans made a tea from wild mint ...