Good news for tea lovers: That daily brew might be purifying the water, too. In a new study, Northwestern University researchers demonstrated that brewing tea naturally adsorbs heavy metals like ...

But brewing tea for longer periods or even overnight — like iced tea — will recover most of the metal or maybe even close to all of the metal in the water,” says Shindel.

But brewing tea for longer periods or even overnight –- like iced tea –- will recover most of the metal or maybe even close to all of the metal in the water.” ...

March 01, 2025 In a recent study, tea leaves were found to take up heavy metal ions from their own brewing water Vinayak P. David Group/Northwestern University View 3 Images View gallery - 3 images ...

New study finds that brewing tea naturally removes lead and other toxic heavy metals from water. Credit: Vinayak P. David Group/Northwestern University Good news for tea lovers: That daily brew ...