1,100–1,600 m
The Sumatran highlands around Lake Tawar — the largest Arabica area in the country.
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No origin matches that.
Thousands of islands, two species, and a processing method used almost nowhere else.
Production figures are for the 2025/26 crop year.
Coffee arrived in Java under Dutch rule in the seventeenth century, which is why "java" became a word for coffee at all. Leaf rust destroyed most of the Arabica in the 1880s and Robusta replaced it — which is why Indonesia today is mostly Robusta, with Arabica concentrated in specific highland pockets on Sumatra, Java, Sulawesi, Bali and Flores.
The signature is *giling basah*, wet hulling: the parchment is stripped while the bean is still wet, and drying finishes on the bare bean. It is a response to a climate too humid to dry coffee slowly, and it marks the cup unmistakably.
Shaded provinces contain growing areas; the crop covers only part of each.
The Sumatran highlands around Lake Tawar — the largest Arabica area in the country.
South of Lake Toba, and the classic heavy-bodied Sumatran profile.
The Sulawesi highlands — cleaner and more acidic than Sumatra.
Wet-hulled Sumatra is heavy, syrupy and very low in acidity, with earthy, cedar and tobacco notes and a savoury edge — a profile people tend to love or avoid entirely. Washed lots from Java and Bali are cleaner and more conventional, closer to a nutty Central American.
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Country outlines and shaded relief from Natural Earth, which places them in the public domain.
Growing-region markers indicate an area. They are not surveyed farm locations and should not be read as any.