South Sumatra is part of the Lampung–South Sumatra–Bengkulu robusta belt that supplies most of Indonesia's robusta.
South Sumatra is grouped with Lampung and Bengkulu as the provinces that together account for about half of Indonesia's coffee and up to 75% of its robusta. In 2018 it produced about 184,000 t of robusta, roughly a quarter of national output, making it the largest producing province. Most robusta here is natural (dry) processed, with washed and honey lots growing. Highland areas such as Pagar Alam on Mount Dempo and Semendo in the Bukit Barisan are grown higher than typical Indonesian robusta. Clones such as BP 42, BP 358 and BP 409 are common, and quality highland lots are described as thick and low in acidity with dark-chocolate and roasted-nut notes.
Field notes
- i
The Dutch planted arabica on the slopes of Mount Dempo in the eighteenth century, then moved to robusta after leaf rust and economic pressure made arabica unviable, according to one specialty exporter.
- ii
Government-released robusta clones such as BP 42, BP 358, BP 409 and Tugusari are used across the province, and growers around Pagar Alam are developing a local yellow-cherry canephora.
In the cup, according to guides
- AcidityLessQuality highland lots are described by an exporter as thick and low-acid, with dark chocolate and roasted nut notes.
- ChocolateOften notedThe same exporter lists dark chocolate and roasted nuts for quality South Sumatra highland robusta.
Within South Sumatra
Processing
Elsewhere in Sumatra
Sources · 3 Every sentence here was checked against a source we read. Taste notes are what guides describe, not promises about your bag. Last revised 2026-11-10. Some details here are less settled than others.
- Coffee production indonesia — Wikipedia · Wikipedia
- South Sumatra is Indonesia's largest robusta coffee producer · Databoks (Katadata)
- Robusta Pagar Alam and Semendo: South Sumatra's Highland Coffee · Indonesia Specialty Coffee (specialtycoffee.id)