Indonesia Sumatra Mandheling G1 TP

Sumatra, Indonesia

Sumatra Mandheling is grown in North Sumatra and Aceh. Between these two regions lies the Mount Leuser Range, said to be home to one of the most ancient and bio-rich ecosystems on the planet.

Mandheling coffee is named after the Mandailing people, an ethnic group that traditionally grew and processed coffee in the Tapanuli region of North Sumatra. As the coffee became popular on a global scale, Mandheling became a trade name, referencing a much broader production region (including the Gayo, Acehnese and others).


Indonesia is an archipelago of more than 17,000 islands, and Sumatra is the second largest of these. The islands were formed by volcanic activity, and their mineral-rich soil—fortified with volcanic ash and diverse plant life—have helped to make Indonesia's coffees among the most famous and celebrated around the world. (Sulawesi and Java, which follow Sumatra in land mass, are also spectacular—and perhaps often lumped together in the public conception of "Sumatra.")

Coffee trees were originally brought to Indonesia in the early 19th century by Dutch colonizers, who sought to break the Arabic monopoly on coffee cultivation. Soon afterward, coffee from Indonesia dominated the world market. By the end of that century, however, disease had completely destroyed the crops. Coffee trees were successfully replanted and quickly gained a large share of the world market until the plantations were ravaged again during World War II.

Giling Basah

Indonesia's coffees have long been prized for a particular cup profile—a delicate acidity, creamy body and flavors from chocolate and red fruit to earthy, herbal, umami and sweet tobacco. The profile is the result of the country’s unique processing method, called wet hulled, or giling basah, in the Bahasa language.

Giling basah involves hulling the parchment at roughly 50 percent moisture content—versus 10 to 12 percent moisture, as is more common around the world). The parchment is then hulled and bagged and sent to rest—which is also unique to Indonesia. Elsewhere, hulling typically takes places just before the coffee is shipped to the port.

InterAmerican buys Grade 1 Sumatra coffees as Double-Picked (DP) or Triple-Picked (TP), referring to the number of times the coffee is hand-sorted for defects. This extra quality control measure further contributes to a very consistent cup that' comprised of cherries picked at optimum ripeness.

Sumatra Mandheling

We also offer a Fairtrade Organic version of Sumatra Mandheling, sourced from different suppliers.

Cup Characteristics

Mandheling coffees pretty consistently feature notes of chocolate, cedar, sweet tobacco and spice notes, along with a mild or winey acidity and creamy body.


Caption: A coffee farm in Sumatra, photographed during a visit by InterAmerican SVP Kayd Whalen.

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