Indonesia
Tropical and near-equatorial, with high humidity and rainfall spread fairly evenly across the year.
Soil profile
Volcanic andisol, common across Sumatra's active volcanic belt.
Growing regions
- Lintong — Near Lake Toba, classic wet-hulled lots
- Gayo (Aceh) — Higher altitude, brighter cup for the region
Seasonal cycle
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Sold through local collectors and exporters in Medan — mostly private treaty, no open auction floor.
The story here
Dutch colonists first planted coffee here in the late 1600s, and again in the 1880s after leaf rust wiped out the original trees — this time turning to hardier Robusta alongside what Arabica survived at altitude. Sumatra's smallholders eventually developed wet-hulling, a processing method found almost nowhere else, giving the region's coffee its signature low-acid, syrupy body.
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