Unlisted ingredients in teas and herbal brews revealed in DNA tests by high school students
Thursday, July 21, 2011 - 11:31
in Mathematics & Economics
Take a second look at your iced or steaming tea. Guided by scientific experts, three New York City high school students using tabletop DNA technologies found several herbal brews and a few brands of tea contain ingredients unlisted on the manufacturers' package. The teen sleuths also demonstrated new-to-science genetic variation between broad-leaf teas from exported from India versus small-leaf teas exported from China.