Indonesian Coffee Brands: Which Indonesian Coffee Brand Tastes Best? What Coffee Beans to Buy in Indonesia

Professional Coffee Knowledge Exchange

This guide walks through Indonesia's major coffee brands and what makes the coffee of each island distinctive.

Indonesia is the largest coffee producer in Asia and the fourth largest in the world. For Indonesians, drinking coffee is as ordinary a habit as tea drinking is in China.

Coffee trees were introduced to Indonesia by the Dutch in the mid-17th century (some official records suggest even earlier).

In 1712, the first shipment of coffee from Java was sold to Amsterdam.

Indonesia exported 300,000 tons of coffee last year, ranking fourth globally, of which roughly 75,000 tons were Arabica.

About ninety percent of this coffee is grown by smallholder tenant farmers on plots of one hectare or less.

Indonesian coffee tastes the way it does for several reasons.

The most important influences are soil type, altitude, coffee varieties, processing methods, and aging techniques.

Together, these natural and human factors create a unique "terroir" for each coffee (see Note 1).

Quality varies widely across Indonesian coffee, and most of it is marketed by island of origin:

Sumatra, Sulawesi, Java, or Timor.

The strength of Indonesian coffee is that most lots show rich, reserved flavors and lively acidity.

The weakness is that some cups can carry an unpleasant astringency or faint musty notes.

Others lean earthy - a quality some coffee lovers prize and others simply dislike.

Indonesian Coffee Brands

Java Island

Java holds an enormously important place in coffee history.

Unlike most other Indonesian coffees, which come from very small farms and receive only initial processing on site, Java coffee is grown on large farms or plantations - mostly government-run - and processed with modern washed methods.

Java produces a delicate, aromatic cup with relatively low acidity, a fine texture, and good balance.

Sulawesi Island

Sulawesi was formerly known as Celebes. It is one of the oldest islands in the archipelago, with exposed rock formations millions of years old. Coffee-growing areas there sit on yellow-red podzolic soils, beneath which lie several layers of iron-rich clay.

The most famous producing region is Toraja, in the highlands of South Sulawesi.

Kalosi, south of Toraja, is the region's main population center and also the name most often used to market Sulawesi coffee.

It is prized for its full body, rich flavors, and deep, lively acidity.

Kalosi: the market name for coffee from the southwestern part of Sulawesi.

Toraja: a growing area in the southeastern highlands of Sulawesi.

Sumatra

"Sumatra" coffee is complex and hard to pin down.

The best Sumatran coffees come from two areas: around Lake Tawar in Central Aceh in the north, and the mountains surrounding Lake Toba further south.

Because of the many smallholder producers, their distinctive semi-washed (wet-hulled) processing, and the lack of iron in the soil, coffee from this region shows a characteristic bluish tint in the fresh green bean stage.

Mandheling:

Once hailed as the fullest-bodied coffee in the world.

Mandheling is a trade name for Arabica coffee from northern Sumatra, associated with the Mandailing people of the Tapanuli region in the northwest of the island.

Lintong:

Mandheling Lintong is the best-known coffee of the Lake Toba region in northern Sumatra.

A word of caution about Golden Mandheling: not every golden-looking Mandheling is true Golden Mandheling.

Gayo Mountains:

In Aceh Province at the northern tip of Sumatra, Gayo coffee is grown on the slopes around the town of Takegon and Lake Tawar.

Altitudes in the production area average between 1,110 and 1,300 meters. The coffee is grown by smallholder farmers under shade trees. This washed coffee is cleaner in the cup but typically lacks the classic flavor profile of traditionally processed Sumatran coffee, resembling the Mandheling style instead.

Its strengths are unique flavors and a deep, lively body.

Aceh, at the northernmost tip of Sumatra, is a fascinating and complicated place. After years of political instability, it is not somewhere ordinary travelers go.

The Gayo people are determined and hardworking, and nearly 20% of the coffee processors there are women.

Timor Island

Timor is divided into East Timor and West Timor, with coffee cultivation dating to the early 20th century. East Timor has not used chemical agents or fertilizers for the past 25 years and arguably qualifies as the world's largest organic coffee producer. However, political instability makes exports difficult, so most of what is available today comes from West Timor.

Kopi Luwak

Kopi Luwak comes from Sumatra, Indonesia, and is famous not for its origin but for its unusual processing.

An animal called the Asian palm civet eats ripe coffee cherries. Its digestive system erodes the outer layer of the cherry, and the seeds pass through and are excreted. The beans are then collected, washed, and sorted. Because production is tiny and the flavor unusual, it has become one of the rarest and most expensive coffees in the world.

Some companies now simply produce "Kopi Luwak" by caging civets and feeding them coffee cherries.

Soil Types

The soils of Aceh, Bali, Papua, and the Flores highlands are mainly Andosols - the name derives from the Japanese words "an" (black) and "do" (soil).

These young soils formed from volcanic ash are highly fertile and rich in essential trace nutrients.

For Arabica in the Java and Lintong regions, the soil is a mix of Andosols and Umbrisols - brown, ash-derived weathered volcanic soils blended with substantial organic matter.

Harvesting and Processing

Whether on smallholder farms or mid-sized estates, all Arabica coffee in Indonesia is hand-picked. Because cherries do not ripen all at once, farmers harvest every 10 days across a season lasting 5 to 6 months.

They pick only red, ripe cherries to get the best quality, aroma, and flavor. Where mechanical harvesting is used, unripe cherries diminish the coffee's aroma and give it a rougher texture.

After harvesting, these coffees are processed in different ways, which shape the final cup's distinctive taste and aroma.

Done well, these methods enhance quality; done poorly or inconsistently, they cause flavor loss and muddiness.

The three main processing methods are: 1. Dry (natural) 2. Wet-hulled (semi-washed) 3. Washed

Most smallholders in Sulawesi, Sumatra, Flores, and Papua use a uniquely Indonesian process called "giling basah," which translates as "wet grinding" - better known in English as wet-hulled processing.

In this technique, farmers use machines to hull the cherry while the beans are still wet. The beans, still coated in mucilage, are then stored for about a day.

During that time the mucilage is washed off. The coffee is partially dried and ready for sale at roughly 30% to 35% moisture.

Hulling the beans in this semi-dry state gives them their distinctive deep blue color. It also lowers acidity and boosts body, creating the classic Indonesian cup profile.

Altitude

All Arabica-growing regions in Indonesia fall within the ideal altitude band for Arabica: between 1,000 and 1,800 meters. Generally, the higher the coffee grows, the slower it develops, with lower yields but denser beans and more flavor.

Wamena region, Papua: 1,400 to 2,000 meters

Moanemani region, Papua: 1,400 to 1,700 meters

Central Flores: 1,200 to 1,700 meters

Toraja region, Sulawesi: 1,000 to 1,700 meters

Kintamani region, Bali: 1,000 to 1,500 meters

Ijen Plateau, East Java: 1,300 to 1,500 meters

Lintong region, Sumatra: 1,200 to 1,500 meters

Aceh region, Sumatra: 1,110 to 1,300 meters

Varieties

More than 20 Arabica varieties circulate in the Indonesian commercial market, grouped into six main categories.

The best known is Typica - the original cultivated variety the Dutch brought over. When leaf rust swept through Indonesian coffee, much of the Typica was wiped out in the late 1880s. Typica can still be found in Sumatra, Sulawesi, and Flores, particularly at high altitudes and in remote areas such as Bergandal and Sidikalang.

After size sorting, some producers age their coffee for one to three years before selling it. This gives the beans a very mellow, warm character with woody and cinnamon notes; the fresh beans gradually deepen from pale yellow to brown.

Note 1: "Terroir" comes from the French and originally means "land" or "homeland." There is an old saying that the water and soil of a place shape its people - meaning that people raised in a particular environment, with its particular geography, climate, history, and customs, naturally develop a distinct character. Coffee is much the same: the soil, terrain, elevation, drainage, weather, and even local traditions of a growing region all shape how the coffee expresses itself. That is why the same variety, grown and processed the same way, can taste completely different from place to place. Terroir - the unique combination of soil, topography, and climate - explains it, because there is simply no other place on earth quite like it.

FrontStreet Coffee Recommendation

If you want to taste what Indonesian coffee is all about, start with FrontStreet Coffee's wet-hulled Mandheling. Sourced from the Lake Toba area of the Lintong region in northern Sumatra and processed with the traditional wet-hulled method, it is roasted medium-dark to bring out the classic profile: low acidity, a thick and mellow body, rich notes of caramel, dark chocolate, and toasted bread, and a long, sweet finish. It is an excellent choice for anyone who loves a bold, intense cup.

For a top-shelf Indonesian experience, try FrontStreet Coffee's PWN Golden Mandheling. PWN is a trading company that buys premium lots of Mandheling green coffee and produces only specialty-grade Mandheling, with Golden Mandheling as its signature product. The beans are strictly screened for density, size, shape, and color, then machine-sorted and hand-sorted to remove defects, yielding whole, uniform, translucent beans with far less earthiness and grassiness. In the cup you will find sandalwood, herbal, spice, roasted hazelnut, caramel, and dark chocolate flavors - clean, mellow, aromatic, and beautifully layered. It is a pleasure to drink daily and makes a fine gift as well.