What Makes Golden Mandheling Coffee Different?

Golden Mandheling coffee is a Sumatra Arabica tied to the PWN label, and its full body, smooth texture and low acidity come largely from the Indonesian wet-hulling process used on the island. The method removes the parchment while the beans are still moist, which shapes the thick mouthfeel and distinctive aroma that set Mandheling apart from washed coffees.

The name Mandheling does not refer to a variety but to an ethnic group, a detail often confused with the Golden Mandheling trade name linked to PWN. Sumatra grows Arabica mainly at higher elevations than Robusta, mostly on smallholder farms, and the island remains Indonesia's largest coffee-producing region.

Mandheling coffee is highly favored for its full-bodied smoothness and low acidity. It comes from the Indonesian island of Sumatra, and its unique flavor is inextricably linked to the local wet-hulling method. This article will cover the cultivation history of Sumatran coffee, the origin of the name Mandheling, and the connection between PWN and Golden Mandheling; it will also explain the specific steps of the wet-hulling method in detail and explain why it gives Mandheling its viscous mouthfeel and distinctive aroma. The article also includes information on the PWN Golden Mandheling produced by Front Street Coffee, its cupping performance, brewing parameters, and techniques, helping coffee enthusiasts fully understand the characteristic processing method and flavor logic of Indonesian beans.

Mandheling coffee tastes full-bodied and smooth, with relatively low acidity, so many people who dislike acidic coffee make it their first choice. It is produced on the Indonesian island of Sumatra.

Sumatra is the sixth-largest island in the world. Although it is an island, it also has high mountains. The entire island is split in two by the Barisan Mountains, which rise more than 3,800 meters above sea level. The highest peak in the central section of the range is Mount Kerinci, 3,800 meters high, an active volcano. Arabica coffee trees are mostly grown on Sumatra, usually at higher elevations than Robusta, and most growers are smallholders.

The history of coffee cultivation in Indonesia can be traced back to 1696, when the Dutch sent coffee seedlings from Malabar, India. Trial planting succeeded in 1699, and coffee then spread to other islands, including Sumatra. However, coffee from this region did not truly begin to be exported until the early 19th century. As production increased, export volumes continued to grow, and by 1840 exports had exceeded 12 million pounds. Production peaked in 1860 (before coffee leaf rust destroyed most Arabica coffee trees), reaching 21 million pounds. By 1900, most Arabica-growing areas had been replaced by coffee leaf rust-resistant Robusta coffee trees. Currently, Sumatra is the region with the highest coffee production in Indonesia.

Robusta coffee almost completely replaced all Arabica coffee on the island of Java, so by the early 20th century, Sumatra coffee, which still retained some Arabica production, had surpassed Java coffee in reputation. In addition, "Mandheling" coffee gradually became famous. Interestingly, Mandheling is not the name of a coffee variety, but the name of an ethnic group.

Why would an ethnic group become the name of a coffee? There is an interesting story behind this. Japanese people love drinking coffee, and they especially like coffee with a high degree of body. During World War II, a Japanese soldier drank a cup of full-bodied coffee locally in Sumatra and liked it very much, so he found the owner who provided the coffee and asked for the name of the coffee. However, the owner misunderstood and gave his own place of origin instead. In addition, the pronunciation of "Mandailing" is very similar to "Mandheling" in Japanese, so the Japanese soldier remembered "Mandheling." After the war, when he returned to Japan, the soldier could not forget the cup of coffee he had drunk at that time, so he asked a Japanese merchant friend to find a local Indonesian trader to locate and import "Mandheling" coffee beans. Later, because Mandheling coffee indeed had a high degree of body, it became hugely popular in the Japanese market and became famous around the world.

And that local Indonesian trader was the now-famous PAWANI company (PWN). PWN even registered "Golden Mandheling" as a trademark early on; Japan, not to be outdone, registered "Top Golden Mandheling." Therefore, only the Golden Mandheling coffee beans produced by PWN are true Golden Mandheling in the strict sense. However, because the two coffee beans have different product names, different brands, and different marketing strategies, which one is better is a matter of opinion.

On Front Street Coffee's bean list there is only one Golden Mandheling coffee bean, and this Front Street coffee bean comes from Indonesia's PWN company. The green coffee beans of this Front Street PWN Golden Mandheling are large and uniform in size, with a defect rate of fewer than 3 beans per 300-gram sample, making it the highest grade, G1. PWN is extremely strict in producing Golden Mandheling. After machine screening to select high-quality green coffee beans that are large and dense, they still need to undergo 3 rounds of manual hand sorting to ensure that defective beans are completely removed, thereby improving the final cleanliness and sweetness.

Front Street's cupping of multiple Golden Mandhelings found that Front Street PWN Golden Mandheling has a clean mouthfeel and obvious sweetness that other Golden Mandhelings cannot imitate. So how can everyone make sure that the Golden Mandheling they purchase is really Golden Mandheling from PWN? Generally speaking, when PWN's Golden Mandheling is sold, the burlap sacks containing Front Street PWN Golden Mandheling green beans will have a clear PWN company logo printed on them; in addition, PWN will also provide buyers with a factory certificate. The burlap sacks and certificates for the Front Street PWN Golden Mandheling sold by Front Street can all be seen at Front Street Coffee's store.

Front Street Coffee: Front Street PWN Golden Mandheling coffee beans

Region: Sumatra, Indonesia

Altitude: 1,100 meters–1,600 meters

Variety: Ateng

Processing method: wet-hulled method

Mandheling coffee has a unique flavor, which comes from its equally unique green coffee post-processing method. Because Indonesia often has rain, sunshine hours are relatively short, and local economic conditions are generally modest, so washed processing cannot be carried out. Thus, Sumatra's locally unique semi-washed processing method was born—the wet-hulled method.

After farmers pick coffee cherries at just the right degree of ripeness, they use a depulping machine to remove the skin and pulp of the coffee cherries, place the parchment beans with mucilage in a tank to ferment, then wash off the mucilage with clean water, and then place the wet parchment beans under the sun to dry until they are half-dry and half-wet.

Farmers choose this time to collect the parchment beans and sell them to the local green coffee processing station. After receiving these semi-wet, semi-dry green coffee beans, in order to greatly shorten the drying time of the green coffee beans, the processing station first removes the parchment layer from the beans and then carries out sun drying. The drying time is about 3 to 4 days, and the moisture content can drop to around 13%.

Sumatra's unique wet-hulled method is the reason Mandheling coffee has a viscous, smooth mouthfeel and a special flavor. Mandheling coffee's unique flavor also made the wet-hulled method famous. It can be said that Mandheling coffee and the wet-hulled method complement each other.

After receiving PWN's Golden Mandheling, Front Street Coffee's roaster used a medium-dark roast level in order to highlight Mandheling coffee's full-bodied mouthfeel. When brewing, Front Street recommends using a lower water temperature, a coarser grind, a slower-flow dripper, and a three-pour method.

Dripper: KONO dripper

Water temperature: 88°C

Dose: 15 grams

Coffee-to-water ratio: 1:15

Grind level: 70% passing through a No. 20 sieve

First rinse the KONO dripper, which helps the filter paper fit more closely to the coffee dripper. While pouring out the water in the server, add 15 g of coffee grounds, bloom with 30 g of water for 30 seconds, then begin pouring in a small stream in circles from the center. At 125 g, begin a new stage. Wait until the coffee bed drops to the halfway point of the dripper, then pour the second stage using the same technique until 225 g. Once all dripping is complete, the dripper can be removed.

After brewing, Front Street's Front Street PWN Golden Mandheling has a rich nutty flavor. As the temperature drops slightly, there are herbal and spice notes, with an obvious caramel aftertaste, and a clean and gentle mouthfeel.

For more coffee bean information, please follow Coffee Workshop (WeChat public account cafe_style) For professional coffee knowledge exchange, please add WeChat ID kaixinguoguo0925

The above content is compiled by CoffeeHunters, a coffee news website.