Can they really go bad? The short answer is yes, tea bags do expire. But in most cases, it doesn't mean the brew isn't safe to drink. Legend has it that it was ancient Chinese emperor Sheng Nung ...

Scientists have discovered that tea leaves don’t just make a soothing drink — they can also absorb harmful heavy metals from ...

The process of brewing tea was shown to remove toxic heavy metals from drinking water in a new study from Northwestern ...

A new study conducted by researchers from Northwestern University could have more consumers increasing their tea habit. The ...

That comforting hot cup of tea—or refreshing glass of iced tea on a hot summer day—could help reduce the amount of toxic metals in drinking water, according to a new paper published in the journal ACS ...

Brewing tea overnight, a common method for brewing iced tea ... because grinding the leaves creates additional surface area ...

To conduct the study, the Northwestern team explored how different types of tea, tea bags and brewing methods affect heavy metal adsorption. The various varieties tested included "true" teas such ...

Brewing tea can generally filter out about 15% of lead from drinking water, the authors found. This estimate is based on one mug of water and one tea bag brewed for three to five minutes.

Since steeping time won the top spot in determining how much of the metal was removed from the water, regardless of what type ...

Researchers tested different types of tea, tea bags and brewing methods. Finely ground black tea leaves performed best at removing toxic heavy metals. Longer steeping times helped tea remove ...