- Catalogue altitude
- 1,100–1,800 m · 28 of 75 catalogue coffees report altitude. 1 of those 28 have a recorded range partly or wholly outside this band. This sample does not establish the full growing range.
- Terrain
- Northern Sumatra mountainous region with Barisan Mountains and tropical forests; near Gunung Leuser National Park
- Varieties
- Ateng · Typica · P-88 · Bourbon
- Base process
- Other (named, outside the three) · Natural · Washed
- Conditions and additional steps
- Anaerobic (sealed, no oxygen)
Gayo highlands coffee region near Lake Laut Tawar; coffee introduced in 1924; registered as Geographical Indication (Kopi Arabika Gayo); Hibrido de Timor cultivar planted in 1979; processing uses traditional giling basah (wet hulling) method