Tea Leaves Trap Contaminants, Sorghum Aids 3D Food Printing, and More

SAFETY & QUALITY

Tea leaves trap heavy-metal contaminants

Researchers at Northwestern University have demonstrated that brewing tea helps remove metal contaminants such as lead and cadmium from water through adsorption, the process of heavy-metal ions adhering to the surface of tea leaves, according to an article published in the American Chemical Society (ACS) publication ACS Food Science & Technology.

“We’re not suggesting that everyone starts using tea leaves as a water filter,” said Vin…