Kopi luwak, the world’s most expensive coffee, is made from a certain variety of wild red coffee beans but only after it has passed through the digestive track of the Asian Palm Civet. The berries which grow in Indonesia and Philippines are eaten by the civet, a weasel-like animal, who likes the berries for their flesh. But they can't digest the inner beans which come out as poop.
These droppings are gathered, thoroughly washed, sun dried, roasted and when brewed, they yield an aromatic coffee. Apparently, the beans after having spend about a day and a half in the civet's digestive tract pick up a unique flavor. Drinkers swear it tastes like caramel and chocolate!
Kopi luwak sells for between US $100 and $600 per pound. In coffee shops around Japan and the US it sells for about $30 a cup. In 2008, a department store in London began selling a blend of Kopi luwak and Blue Mountain called Caffe Raro for £50 (US $99.00) a cup.