Kopi Luwak pound in 2010. The specialty Vietnamese "weasel coffee", which is made by collecting coffee beans eaten by wild civets, is sold at US$500 per kilogram. Most customers are Asian, especially those originating from Japan, China and South Korea. Sources vary widely as to annual worldwide production. The price of farmed (considered low-grade by connoisseurs) kopi luwak in large Indonesian supermarkets is from US$100 per kilogram (five times the price of a high quality local arabica coffee). The price paid to collectors in the Philippines is closer to US$20 per kilogram. Some specialty coffee shops sell cups of brewed kopi luwak
Kopi Luwak has two farms with 200 (in Davao City) and 100 (Iligan City) wild civets. But the archipelago of Indonesia where the famous "kopi luwak" was first discovered and produced is leading in supplying the world market for almost three centuries, where many small-scale civet farms are proliferating in the countryside. Several studies have examined the process in which the animal's stomach acids and enzymes digest the beans' covering and ferment the beans. Research by food scientist Massimo Marcone at the University of Guelph in Ontario, Canada showed that the civet's endogenous digestive secretions seep into the beans. These secretions carry