Kopi Luwak aromatic civet coffee spread from locals to Dutch plantation owners and soon became their favourite, yet because of its rarity and unusual process, the civet coffee was expensive even during the colonial era. "Kopi" is the Indonesian word for coffee. "Luwak" is a local name of the Asian palm civet in Sumatra. Palm civets are primarily frugivorous, feeding on berries and pulpy fruits such as figs and palms. Civets also eat small vertebrates, insects, ripe fruits and seeds. Producers of the coffee beans argue that the process may improve coffee through two mechanisms, selection and digestion. Selection occurs as the
Coffee production in Indonesia farmers remove the outer skin from the cherries mechanically, using rustic pulping machines, called "luwak". The coffee beans, still coated with mucilage, are then stored for up to a day. Following this waiting period, the mucilage is washed off and the coffee is partially dried for sale. At least one U.S. manufacturer, soft drink producer Bai, purchases the non-bean remnants of coffee cherries for use in their products. Otherwise, these remnants are discarded. Collectors and processors then hull the coffee in a semi-wet state, which gives the beans a distinctive bluish-green appearance. This process reduces acidity and increases body, resulting