Sumatra Aceh Tengah: A Taste of the Highlands
Origin and Cooperative
We’re excited to feature this wet-hulled coffee from the Kuala Bengi Cooperative in Aceh Tengah, located in the highlands of Sumatra. This lot is a blend of Timtim and Catimor varieties grown at about 1,700 meters above sea level.
The Unique Wet-Hulling Process
This coffee is processed using a method called wet hulling, a type of processing unique to Sumatra and some other parts of Indonesia. In this method, the cherry is first depulped and then fermented overnight in concrete tanks, where the sugars and pectin in the mucilage begin to break down. After fermentation, the mucilage is washed off and the coffee is dried in parchment for two to three days.
At this stage, the moisture content is still around 20%, as opposed to around 11% for washed coffees. This means the beans are still soft, and the parchment is only semi-dried. The coffee is then hulled using a specialized wet huller, powerful enough to remove the damp parchment from these softer beans.
Historical Roots of Wet Hulling
This type of processing has many similarities to washed processes, but the end result is quite different. The roots of this unique method trace back to the Dutch colonization of Indonesia in the 16th century. As in many coffee-growing regions, colonial interests drove early production techniques.
In the humid climate of Sumatra, long drying times presented a major challenge. To accelerate production and reduce labor demands, colonists developed the wet hulling method, which shortened the drying phase and made it easier to prepare coffee for export. Today, even with modern advancements, wet hulling remains the standard across much of Indonesia due to the region’s persistently wet and humid climate.
Flavor Profile
The result of this process and terroir is a cup that is immediately reminiscent of Indonesia. The Sumatra Aceh Tengah offers an earthy richness typical of Sumatran coffees. Look for golden raisin sweetness, a hint of honey, and a spicy clove note that adds complexity and depth. It’s a striking contrast to the Central American and African coffees currently in our lineup, and one that transports you directly to the Sumatran highlands.
Supporting Our Community
Now through October 23, 20% of all Sumatra whole bean sales will be donated to help support local businesses and employees affected by the Nederland Fire.
This fundraiser reflects our deep connection to our mountain community and our gratitude for the people who make it so special.