Tea drinking may be as old as the hills, but it’s constantly evolving. The tea bag has been ubiquitous since the 1950s, but ...

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 ...

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 ...

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 ...

Green tea is attained from tea leaves picked during spring. The tea is novel in that it is the most minimally oxidated of all teas, with the leaves dried shortly after being picked and then pan ...

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.