Brewing Tea Purifies Water
This is a news story, published by ScienceDaily, that relates primarily to Northwestern University news.
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Brewing tea removes lead from water
78% Informative
Northwestern University researchers demonstrated that brewing tea naturally adsorbs heavy metals like lead and cadmium.
Finely ground black tea leaves performed best at removing toxic heavy metals.
Longer steeping times helped tea remove larger amounts of contaminants.
Cellulose bags work best -- and don't release microplastics .
Steeping time played the most significant role in tea leaves' ability to adsorb metal ions.
The longer the steeping time, the more contaminants were adsorbed.
The researchers estimate that tea preparation can remediate about 15% of lead from drinking water.
The study's results provide useful new information that could be applied to public health research.
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