Kopi Luwak has given way to intensive farming methods in which civets in battery cage systems are force-fed the cherries. This method of production has raised ethical concerns about the treatment of civets due to "horrific conditions" including isolation, poor diet, small cages and a high mortality rate. Although kopi luwak is a form of processing rather than a variety of coffee, it has been called one of the most expensive coffees in the world, with retail prices reaching / per kilogram. Kopi luwak is produced mainly on the islands of Sumatra, Java, Bali and Sulawesi in the Indonesian Archipelago. It is
Coffee production in the Philippines beans. Coffee production in competitor regions of Brazil, Africa and Java declined when coffee rust plagued the regions and from 1887 to 1889, the Philippines was the only source of coffee in the world. In 1889, coffee production in the country saw a great decline following the introduction of coffee rust in the country and increased incidence of insect infestation. These elements virtually destroyed all coffee trees in Batangas. By 1891, coffee production in the country was reduced to 1/6 of its total production two years earlier. By this period, Brazil has regained its position as a major coffee producer.