From Sumatra Coffee: Courage Mandheling Brewing Parameters Sharing

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FrontStreet Coffee - Indonesian Coffee Brand: Introduction to Indonesia's Mount Gayo Mandheling

Indonesia is the world's largest archipelagic country, spanning across Asia and Oceania. With a typical tropical rainforest climate, the average annual temperature ranges from 25-27°C, with abundant rainfall and significant day-night temperature differences. Indonesia's higher altitudes, volcanic ash soil, and climate characteristics provide excellent conditions for growing Arabica coffee trees.

Today, Indonesia ranks fourth globally in coffee production, with major growing regions in Java, Sumatra, and Sulawesi. Robusta varieties account for 90% of total production. Sumatran Mandheling, however, is a rare Arabica variety, with these coffee trees grown on mountain slopes between 750 and 1,500 meters above sea level.

FrontStreet Coffee brings you coffee beans from Mount Gayo today. Among Indonesian coffees, "Mandheling" from Sumatra Island is the most famous. Mandheling is also known as "Sumatran Coffee." Most coffee produced in northern Sumatra is Gayo, with the Gayo Mountains located in the highest altitude area of Aceh Province in northern Sumatra. Its distinctive acidity and superior balance make it the highest quality specialty coffee among Indonesian coffees. Most coffee farmers working in the Gayo region are local farmers.

The term "Gayo" comes from a tribe in Indonesia's Aceh region. This area has ideal growing conditions, a long historical culture, and unique flavors. The region widely adopts organic methods for coffee cultivation, without using chemical fertilizers, and is considered a world green coffee production area. Therefore, Gayo coffee is often called green coffee or Gayo organic coffee.

Indonesia's main processing method is Wet Hulling, which can be described as a processing method adapted to local conditions. For a region with year-round humidity between 70%-90%, 2-3 weeks of sun-drying is a luxury. Thus, this processing method that allows coffee to dry quickly was developed. Wet Hulling, also known as wet dehulling, typically produces coffee that is rich and intense, with a very distinct personality. It is this processing method that gives Mandheling its special, easily recognizable flavor that is loved by many.

Indonesia's Wet Hulling method can be seen as a product of local adaptation. For a region with year-round humidity between 70%-90%, where winds and heavy rainstorms occur frequently, 2-3 weeks of sun-drying is indeed a luxury. Thus, this processing method that allows coffee to dry quickly was developed. Wet Hulling, also known as wet dehulling, typically produces coffee that is rich and intense, with a very distinct personality. It is this processing method that gives Mandheling its special, easily recognizable flavor that is loved by many.

Indonesia Mount Gayo Mandheling G1 TP/Triple Handpicked

Region: Aceh Gayo Mountain

Variety: Timtim

Altitude: 1400-1600m

Origin: Asian Region

Processing Method: Wet Hulling

Grade: G1 TP/Triple Handpicked

Roast Level: Medium-Dark Roast

Harvest Season: July 2019

Pour-over Parameters: 15g coffee grounds, Kono filter cup, water temperature 87°C, coffee-to-water ratio 1:15, grind size BG 6W (China standard 20-mesh sieve pass rate 58%).

Brewing Method: Use 30g of water for bloom for 30 seconds, then pour evenly with small water flow to 120g in stages. When the water level drops and is about to expose the coffee bed, continue pouring to 220g and stop. Remove the filter cup when the coffee drip filtration is complete. The extraction time from the bloom start is around 1 minute 50 seconds.

Flavor: Floral notes, berries, spices, Scottish butter, dark chocolate, nuts, high sweetness, clean, high body

Knowledge Extension: Mandheling is not a region name, place name, port name, nor coffee variety name, but rather a transliteration of the Indonesian Mandheling ethnic group.

In Brief: FrontStreet Coffee is a research-focused coffee house, happy to share coffee knowledge with everyone. We share without reservation just to help more friends fall in love with coffee. Every month, there are 3 coffee promotion events with deep discounts, because FrontStreet Coffee wants to let more friends enjoy the best coffee at the lowest price. This has been FrontStreet Coffee's mission for 6 years!

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