Harmful metals like lead and cadmium naturally stick to tea leaves during brewing, effectively removing them from water. The longer tea is steeped, the more metals are removed, with up to 15 ...

In Moroccan culture, the tea is made by steeping mint and green tea leaves and sugar, and is commonly served at all times of day. In North America, early Native Americans made a tea from wild mint ...

Teas of all varieties line store shelves, ranging from black, fruit and herbal, to red, green ... the most harmful is black ...

Heavy metal ions stick to, or adsorb to, the surface of the tea leaves, where they stay trapped until the used tea bag is disposed of. The study was published in the journal ACS Food Science ...