Where do Mandheling coffee flavors come from?

Mandheling coffee comes from Sumatra, Indonesia, the sixth-largest island in the world. Its low-acid, heavy-bodied profile with nutty and caramel notes divides drinkers: some prize the thick, intense aroma, others find only bitterness. The name is neither a region nor a variety, and the article traces its origin story, the legends behind the naming, PWN Golden Mandheling grading, and how wet-hulling shapes flavor.

Coffee reached Indonesia in 1699, when Dutch colonists brought trees from Ethiopia via Yemen. Planting spread from Java to Sumatra, and exports shipped through Jakarta, which is why sacks often read Java. The article adds a KONO dripper three-pour recipe with water temperature, ratio and grind size. Readers checking where is cafe bustelo made will find that is a separate brand history, not a Sumatran origin.

Mandheling is one of the most controversial beans in the coffee world—some people are captivated by its rich, full-bodied aroma, while others feel it offers nothing but bitterness. What exactly is the backstory of this classic coffee from Sumatra, Indonesia? Where did its name come from, and why does it have such a distinctive low-acid, heavy-bodied flavor? This article, from Front Street's perspective, covers the origin history of Mandheling, the legends behind its name, the grading standards of PWN Golden Mandheling, and how wet-hulling shapes its flavor. It also includes Front Street's recommended KONO dripper three-pour brewing recipe, including water temperature, coffee-to-water ratio, and grind size, so you can recreate a full-bodied Mandheling with nutty and caramel notes at home.

Mandheling coffee can be said to have a very distinct personality, and opinions in the coffee community often split into two camps: one group of connoisseurs is won over by its thick, intense aroma, while the other feels its bitterness stands out and they can't taste any other layers. But as a classic coffee bean that gained fame as early as the last century, Mandheling must have something appealing about it. This time, Front Street will walk you through what authentic Mandheling is all about.

Mandheling coffee comes from the island of Sumatra, and Sumatra belongs to Indonesia. It is the sixth-largest island in the world, home to over fifty million people, and together with Borneo and Java, it forms one of the three main islands that make up Indonesia.

If you know anything about the history of coffee's spread, you'll know that Indonesia's coffee-growing tradition is equally long-standing. Coffee trees first grew in Ethiopia, and in 1699, Dutch colonists introduced coffee to Indonesia via Yemen.

After that, coffee expanded rapidly in Indonesia, spreading from Java all the way to Sumatra, and Indonesia thereby became one of the world's major coffee-producing countries. Back then, Indonesian coffee was mostly exported through Jakarta in Java, which is one of the reasons Java coffee was once considered among the world's finest. So it's not surprising that export sacks were printed with the word "Java."

Besides Java coffee, another well-known name from Indonesia is Mandheling. However, Mandheling is neither a region name nor a variety name, and there's a story behind its origin.

Legend has it that during World War II, a Japanese soldier drank a cup of rich, full-bodied coffee and asked the shop owner what it was called. The owner thought the soldier was asking about his identity, so he gave his family name, "Mandailing." In Japanese, "Mandailing" and "Mandheling" sound very similar, so the soldier remembered it as "Mandheling." No one can resist something delicious, and after returning home, the soldier asked his Japanese merchant friends to go to Indonesia to find Mandheling coffee, eventually shipping several tons of Mandheling green beans back to Japan for sale. Early specialty coffee evaluation standards were heavily influenced by Japan, and Mandheling became hugely popular in the Japanese market, which helped it gain fame worldwide.

That Indonesian local merchant back then was none other than the later-famous PWN company. PWN registered "Golden Mandheling" as a trademark early on; the Japanese merchants were not to be outdone and registered "Top Golden Mandheling." The two companies have different brands and different marketing approaches, and as for which one tastes better or is more premium, that's really a subjective matter.

Since "Golden Mandheling" is a registered trademark of PWN, only Golden Mandheling from PWN qualifies as true Golden Mandheling in the strict sense. Many vendors on the market also label their roasted beans as Golden Mandheling. If consumers want to confirm whether the Golden Mandheling in their hands or about to be purchased comes from PWN, they can ask the vendor to show something like Front Street's PWN Golden Mandheling green coffee bean sack and certificate to prove whether it is authentic Front Street PWN Golden Mandheling.

FrontStreet Coffee PWN Golden Mandheling

Region: Sumatra, Indonesia

Altitude: 1,100m–1,600m

Variety: Ateng

Processing Method: Wet-Hulled

Front Street's Front Street PWN Golden Mandheling green beans are the highest G1 grade, with bean screen size of 18+ and no more than 3 defective beans per 300-gram sample. PWN has quite strict standards when producing Golden Mandheling—after machine sorting, the beans undergo 3 rounds of hand sorting to remove as many defective beans as possible, thereby improving the coffee's cleanliness and sweetness.

Sumatran coffee is known for its low acidity, and there are several reasons for this style, with the local farmers' post-harvest processing method being the most critical factor. Compared to the common washed processing in Latin America, this method is more primitive and more free-form.

On the day the coffee cherries are picked, the skin and pulp are removed by machine. Then, the parchment beans still coated in sticky mucilage are piled in tanks or bags to ferment. After that, the mucilage layer is washed off with clean water, and the parchment beans are spread out in the yard to dry.

When the parchment beans are in a semi-dry, semi-wet state, farmers bag them and sell them to nearby coffee processing plants. After receiving the parchment beans, the processing plant removes the parchment layer, exposing the green beans directly for drying.

Mandheling processed with the wet-hulled method often has flavors with spice and herbal notes, weak fruit acidity, and a viscous, smooth mouthfeel. With its deep, low-toned aroma and full-bodied texture, Mandheling is widely known around the world. And because of Mandheling's popularity, its unique wet-hulled processing method became famous too. It can be said that wet-hulling and Mandheling coffee have made each other what they are.

When FrontStreet Coffee's roasters received Front Street PWN Golden Mandheling green beans, they observed that the beans were very uniform in size and had a blue-green color. To highlight Mandheling's full-bodied mouthfeel during roasting, a medium-dark roast was used.

If you want to experience Mandheling's rich aroma when brewing, Front Street recommends choosing freshly roasted coffee beans. Mandheling's optimal flavor window is within 45 days from the roast date, but also note that its resting period is 7 days—meaning you should wait 7 days after roasting to let the coffee release some gas so the flavor is better. Front Street understands customers' eagerness to receive their beans and also recognizes the importance of coffee bean freshness, so when shipping, we provide fresh coffee beans roasted within 5 days. Add 1-2 days of logistics time, and you can basically drink them as soon as they arrive.

To brew Front Street PWN Golden Mandheling with its full-bodied mouthfeel, FrontStreet Coffee recommends using a slower-flow dripper, such as the KONO dripper. To avoid over-extraction caused by coffee grounds contacting water for too long, Front Street recommends a medium-coarse grind and a water temperature of 88°C.

Dripper: KONO dripper

Water Temperature: 88°C

Coffee Dose: 15g

Coffee-to-Water Ratio: 1:15

Grind Size: Medium-coarse (Chinese standard No. 20 sieve, 70% pass rate)

If you regularly read Front Street articles, you're probably familiar with the three-pour method used by FrontStreet Coffee baristas—this pouring method brings out more layers in the coffee.

First, pour 30g of hot water to fully wet the coffee grounds and let them bloom for 30 seconds; then, using a slow, small stream, start from the center and slowly spiral outward, pouring the second stage up to 125g; when the water level in the dripper drops to just before the coffee bed is exposed, continue pouring the third stage up to 225g and stop; once the water in the dripper has fully dripped through into the server below, remove the dripper. Total extraction time is about 2 minutes.

FrontStreet Coffee's Front Street PWN Golden Mandheling brews with nutty notes, and as the temperature drops slightly, cinnamon spice, herbal, and melon aromas emerge, along with a caramel-like sweetness and a clean, full-bodied mouthfeel.

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