Tea leaves can remove heavy metals such as lead, cadmium and chromium from water. And steeping time has the biggest impact.

Brewing tea may help filter lead from water, but it depends on the type, grind, bag and steep time, a new study has found.

A new study found that tea leaves naturally absorb heavy metals, filtering dangerous contaminants from drinking water.

That comforting hot cup of tea—or refreshing glass of iced tea on a hot summer day—could help reduce the amount of toxic metals in drinking water, according to a new paper published in the journal ACS Food & Science Technology.

Brewing tea is a ritual as old as civilization, a moment of calm amid the storm of daily life. But scientists now say that it might be doing more than just waking us up and providing comfort — it could be purifying our water,

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 lead and cadmium, effectively filtering dangerous contaminants out of drinks.