Origin Guide

Indonesian Coffee Regions

From the volcanic highlands of Sumatra to the citrus groves of Bali, Indonesia's archipelago produces some of the most distinctive coffees in the world. Discover the regions, the wet-hulled process, and the flavors that define them.

The Indonesian Difference

Born of Volcanic Soil & Giling Basah

Indonesia is the world's fourth-largest coffee producer, and its cup character is unlike anywhere else. Much of that identity comes from Giling Basah — the traditional wet-hulled processing method where beans are hulled at a high moisture content. This unique step produces the heavy body, low acidity, and earthy, spicy, full-bodied flavors that specialty roasters around the world seek out.

Combined with mineral-rich volcanic soil and high-altitude cultivation, each region develops its own signature. Here is a guide to the origins behind Beiro Coffee.

01

Gayo

Aceh, Sumatra

Altitude
1,100 – 1,600 masl
Process
Wet-Hulled (Giling Basah)

Grown in the volcanic highlands of the Gayo plateau, Gayo Arabica is celebrated for its heavy body, low acidity, and complex sweetness. The traditional wet-hulled method gives it a signature earthy depth layered with chocolate, herbal, and spicy tones. Gayo is also the home of Indonesia's rarest wild civet coffee.

ChocolateHerbalSpicyFull body
02

Mandheling

North Sumatra

Altitude
900 – 1,500 masl
Process
Wet-Hulled (Giling Basah)

One of the most iconic Indonesian coffees, Mandheling delivers a rich, syrupy body with very low acidity. The humid wet-hulling process produces its distinctive earthy, woody character balanced by dark chocolate and a lingering herbal finish — bold and unmistakably Sumatran.

EarthyDark chocolateNuttyLow acidity
03

Java

East Java

Altitude
1,400 – 1,800 masl
Process
Fully Washed

Cultivated on the slopes of East Java's volcanoes, Java Arabica is typically fully washed, giving it a cleaner, smoother cup than its wet-hulled neighbours. Expect a classic, well-rounded profile with chocolate, mild spice, and a gentle woody sweetness — the foundation of the historic 'Mocha-Java' blend.

ChocolateWoodySmoothMild spice
04

Toraja

South Sulawesi

Altitude
1,400 – 1,900 masl
Process
Wet-Hulled (Giling Basah)

From the rugged highlands of Tana Toraja, this coffee is full-bodied and intensely flavourful with very low acidity. The wet-hulled process draws out dominant earthy and dark chocolate notes wrapped in warm spice, prized by roasters seeking depth and a bold finish.

EarthyDark chocolateSpicyFull body
05

Bali Kintamani

Kintamani, Bali

Altitude
1,200 – 1,600 masl
Process
Fully Washed

Grown under the Subak Abian agroforestry system alongside citrus trees, Bali Kintamani stands apart with its bright, clean acidity and vibrant fruit character. Lighter in body than Sumatra origins, it offers lively citrus, tropical fruit, and a crisp, refreshing finish.

CitrusTropical fruitBright acidityClean

Source These Origins With Beiro

Explore our single origin range or partner with us for green bean export from any of Indonesia's premier coffee regions.