The best farm-to-cup Indonesian coffees come from three regions: Sulawesi, Sumatra, and Java. Of the three regions, Java is the most productive and noted for Arabica coffee with bright acidity and a clean, fruity profile. Today, about 90% of Indonesian coffee is from the Robusta species, now commonly used for commercial-grade coffee.
Arabica coffee plants were first brought to Indonesia in the 17th century by the Dutch East India Company while Indonesia was still occupied by the Dutch. Their goal in growing coffee was to break the worldwide Arab monopoly on coffee trade.
In the beginning, the Dutch Colonial Government planted coffee as far south as Bogor and Sukabumi, as well as around Batavia (Jakarta). Coffee plantations were later established in East, West and Central Java, in addition to some parts of Sulawesi and Sumatra. In order to develop the plantations, large areas of forested land were cleared and cultivated. The growth of coffee plantations was responsible for the development of a lot of infrastructure in Central Java throughout the 19th century. Many railways and roads had to be constructed in order to transport the beans from the island interior to different ports so that they could be exported.
Indonesian coffee’s are processed in a way that is referred to as giling basah, known in other parts of the world as the Semi-Washed/Wet-Hulled Process. Once the coffee has been picked, it is then depulped and briefly dried. Rather than drying the coffee to a moisture content of 11 or 12 percent like most other processes do, the semi-washed process dries the coffee to a moisture content of 30-30 percent. The coffee is then hulled to strip off the parchment and expose the green coffee beans underneath. These naked beans are then dried once more until they are dry enough to be stored without potentially rotting. Semi washed coffee tends to have a much lower acidity and more body than most coffee.
Indonesia coffees tend to have a dark and bold flavor profile, with a prominent earthiness. The semi-wash process creates tasting notes ranging from earthy, mustiness, spice, wood, tobacco and leather. They often have a long lasting finish that feels like unsweetened or dark cocoa. The Sumatran region is the most popular Indonesian region today because of its reputation for taking well to darker roasting. Sumatra produces Mandheling and Ankola, which are two of the world’s most famous and high quality coffees. There are usually smokey or toasted flavors with a lot of complexity. These coffees are often polarizing because many coffee lovers believe those flavors overwhelm the cup.
If you want to experience the earthy notes and aromas made famous by Indonesian coffees, check out our Indonesian Sampler! Bean Box hand picks four Indonesian roasts every month from Seattle’s world-renowned roasters. It’s the perfect way to try some of the best Indonesian coffee’s Seattle has to offer!