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Mansur Bener Meriah

North Sumatra, Aceh, Sumatra
Partner since: 2019 Traceable to: 300 farmers, 3 communities Altitude: 1200 - 1500 MASL

Traditional Sumatran wet-hulled process. Each farmer pulps fresh cherry, ferments in bags for 12+/- hours, and dries for 3-4 days, before deliving to the collector, Mansur. He then sorts by quality and “wet hulls” the wet parchment into green bean form, and dries down to export level in a central lcoation

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Community Context

Mansur is a collector not so different from many others buying parchment from North Sumatra. But our staff in Sumatra took to him based on his history of consistent quality deliveries and focus on only buying from farmers who are serious to help him achieve Grade 1 again and again. He does not operate an army of trucks, but instead focuses around 3 communities: Pante Raya, Lampahan, and Permata. All are just slightly north of Lake Takengon, in Aceh. The roughly 300 farmers that sell to Mansur get paid cash directly upon delivery to avoid the common problems of credit buying and loan sharking which can be quite common in Sumatra. The larger region of Bener Meriah produces about 60% of Aceh’s total volume. It is blessed by high altitude and a more diverse list of planted tree varieties. Most coffee from here is naturally organic, as the land includes a lot of large shade trees. This reduces the need for heavy vegetable intercropping, which often results in more pesticides being used on a farm. Coffee from Bener Meriah are often larger in size with a bluish gray color. They are characterized by a thick body and dark chocolate in the cup.

Country Context

To talk about Sumatra we need to speak of its size. It’s large. Larger than Texas and Florida combined. In the middle of the island is a caldera called Lake Toba: the largest caldera from the largest volcanic explosion this world has ever seen. In this lake there is an island bigger than the country of Singapore. It is because of this lake that Sumatra has the largest rainfall seen by any coffee exporting country – the lake feeds clouds trapped in by the island’s 1500m tall mountains.

Sumatra is old. When Marco Polo visited the island’s northern tip back in 1292, he found the local people speaking Sanskrit, one of the purest remaining forms of the ancient language. When the Dutch East Indian Trading Company came, Aceh (and later Java) became the first commercial coffee origins that the world had seen.

Sumatra is big; I know we already said that, but it is really, really big. There are over 52 languages over four major ethnic groups (Acehnese, Minangkabaunese, Batak and Mala) covering an area over 170,500 square miles around. However big the island, however, there is only one government-authorized port of export – the 15 million person city of Medan. To get here, coffee has to travel as far as 375 miles, over massive mountains and on roads that are mostly still mud.

That’s 20 hours north to the producing regions Gayo Aceh, or 24 hours to the southern most Arabica regions in Kerinci. And this is the main reason that Sumatran coffee is hulled while wet, and dried while in the green. Called Giling Basah, this process starts with coffee parchment being dried to 30-50% moisture before being milled into green beans. Higher moisture during transport from the farm to the port can lend to the classic ‘earthy, musty’ flavors that you get in some Sumatrans.

Another source of Sumatra’s unique flavors dates back to the turn of the 20th century when Indonesia’s coffee crop was wiped out by leaf rust. Much of this was replaced with HDT (Hybrid de Timor) (Bourbon x Robusta), its direct descendant Tim Tim, or the more modern Sigarar Utang (Tim Tim x Bourbon).

And these are Robusta-Arabica hybrids; over the generations these have only added more Arabica through crossing Tim-Tim and with Sigarar Utang (Ateng). But there are pure Arabica strains as well, like Jember (Bourbon x Typica), USDA (Ethiopian Arabica transplant), and Onan Ganjan (Jember x Bourbon). So the genetic stock is absolutely unique.

But what makes Sumatra truly unique are Sumatrans. As a new generation takes the reigns, they are taking the country headlong into specialty. The past years have seen an explosion of washed coffees, naturals, honeys, new varietals, new regions and new ways of thinking about Sumatra’s role in specialty coffee. Not just locally, but regionally –Indonesian coffee has so much to offer, and so much of what comes out of Bali, Flores, Timor and Sulawesi comes through Sumatra.