The Evanston researchers discovered brewed black, green and other tea leaves can remove dangerous contaminants as the leaves ...

A Northwestern University study found that tea leaves can naturally pull lead and other dangerous metals out of water as tea steeps. About 5 billion cups of tea are consumed each day worldwide, ...

Claudia: The harvest lasts six months, from spring to fall, until the leaves become too strong to make a good tea. In order to move around freely, harvesters first have to cut the sides of the plant.

Thousands of workers in the tea industry could lose their jobs as multinationals implement cost-cutting measures following an acute shortage of green leaves ... off workers to cut down on ...