Doo-Doo Delicacy: World's Priciest Coffee Put to Test
Monday, August 26, 2013 - 12:00
in Mathematics & Economics
The world's most expensive coffee is a delicacy derived from coffee berries pooped out by the Asian palm civet. Fake "Kopi Luwak," as the coffee is called, is common, but now researchers say they have a test that can determine which grinds are real.