Kratom leaves are crushed and dried to make kratom tea leaves. The leaves can also be smoked or made into a powder, extract, or capsule. Kratom also goes by other names, including Maeng Da, ketum, ...

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 ...

“We’re not suggesting that everyone starts using tea leaves as a water filter,” said co-author Vinayak Dravid, who studies sorbent materials at Northwestern University. “Our goal was to ...

Finely ground black tea leaves performed best at removing toxic heavy metals. Longer steeping times helped tea remove larger amounts of contaminants. Good news for tea lovers: That daily brew ...

Heavy metal ions stick to, or adsorb to, the surface of the tea leaves, where they stay trapped. The study was published Feb. 24 in the journal ACS Food Science & Technology. “We’re not suggesting ...

IT’S A CONCENTRATED form of ingredients found in green tea leaves. Decades of scientific research suggest that people who regularly drink green tea are healthier than those who don’t.