How should Golden Mandheling be brewed as pour-over?

Golden Mandheling is a wet-hulled Sumatran coffee with a full body and notes of nuts and chocolate. For pour-over, a medium-coarse grind, water near 88 to 92 degrees Celsius, and a coffee-to-water ratio around 1:15 keep the cup clean while preserving that heavy, low-acid character and long finish.

Use a dose of about 15 grams of coffee, rinse the filter, then pour in stages: a short bloom with roughly twice the coffee weight in water, followed by two or three steady pours. The name Mandheling has no relation to the Mandailing people, and the PWN trademark on Golden Mandheling marks one producer's screened lots.

Golden Mandheling is one of the most representative varieties of Indonesian coffee, known for its full-bodied, clean character and nutty-chocolate flavors. This article starts with the background of Indonesian coffee-growing regions, traces the origin of the name "Mandheling," the screening standards for Golden Mandheling, and the trademark ownership dispute, and focuses on analyzing the wet-hulling process used for the Golden Mandheling produced by PWN. At the same time, using the brewing method of [FrontStreet Coffee] as an example, it provides detailed key parameters such as dripper selection, water temperature, coffee dose, coffee-to-water ratio, grind size, and staged extraction technique, helping coffee lovers recreate at home a cup of Golden Mandheling with layered complexity and a long finish.

Coffee, tea, and cocoa are known as the world's three most popular beverages, and coffee beans from different origins present distinctly different flavor characteristics due to terroir differences. As an important coffee-producing country in Asia, Indonesia ranks among the top in the world in production, and its coffee is also quite well known in the international market, with Golden Mandheling being the most familiar.

Indonesia is the world's largest archipelagic country. As early as the 18th-century Dutch colonial period, Arabica varieties were introduced for cultivation, with the main producing areas concentrated in Sumatra, Java, and Sulawesi.

Sulawesi is Indonesia's third-largest island, with an annual coffee output of about 70,000 to 80,000 bags, accounting for only 9% of the national total. Local coffee is mostly grown in rainforest areas at elevations of 750 to 1,500 meters, and most of the higher-quality coffee is distributed around the southwestern Toraja highlands. Toraja is about 1,500 meters above sea level, located in an equatorial region with year-round afternoon rain and pervasive mist, and together with fertile volcanic soil, it provides ideal climate and natural conditions for coffee growth. Most of the buying, selling, and exporting of Indonesian coffee is handled by local coffee companies.

The Origin of Mandheling Coffee

Coffee cultivation in Indonesia began during the Dutch colonial period, and since then it has gradually developed a unique flavor system, with Sumatra's Mandheling coffee being the most representative. Mandheling was originally the name of a tribe, and the Japanese mistakenly treated it as the name of a coffee during its spread; this misunderstanding has continued to this day. Today, Mandheling has spawned many subdivided categories, such as Golden Mandheling, Tiger Mandheling, Aged Mandheling, and so on. This article focuses on the ins and outs of Golden Mandheling.

The "Battle" Over Golden Mandheling

As is well known, the Japanese are quite skilled at meticulous refinement, especially in the food sector. Mandheling was popularized by the Japanese, so they naturally had more advantages in securing high-quality resources. In order to improve Mandheling's shortcoming of a relatively high proportion of defective beans, the Japanese side established strict screening standards: after green beans undergo density and color sorting, they still need to be hand-picked four times before finally obtaining Golden Mandheling with uniform color and neat bean shape. After such strict screening, Golden Mandheling not only removes the earthy off-flavors commonly found in ordinary Mandheling, but also has a cleaner and more transparent taste, with more prominent sweetness.

Interestingly, although Golden Mandheling has been registered as a trademark, the one who registered it first was not a Japanese company, but the local Indonesian company PWN (Pwani Coffee Company). Japanese companies were subsequently forced to switch to the name "Gold Top Mandheling." The two can be roughly distinguished by bean shape: PWN's products are mainly the old Typica, with larger beans; Gold Top's are mainly a Typica variant, with smaller beans. As for which flavor is better, opinions vary from person to person.

A Special Processing Method

The local weather is mostly rainy, with frequent typhoons, making it difficult to meet the good weather conditions required for natural sun-drying; at the same time, limited local economic conditions also make it impossible to adopt the more costly washed method. Under the influence of multiple factors, the highly regional wet-hulling method emerged—that is, during the conventional washing process, the beans are sun-dried with parchment still on for 2 to 3 days, and once the moisture content drops to 20% to 24%, the parchment is then removed.

Wet hulling is extremely fast, which also leads to a relatively high overall defect rate in Mandheling, while Golden Mandheling does a good job of avoiding this flaw. Golden Mandheling's specification is 19 screen or above, with fewer than 3 defective beans (based on a 300g green bean sample). It belongs to the highest grade G1, is darker green in color, and has a neat flat-bean shape.

Taking [FrontStreet Coffee Indonesian Golden Mandheling Coffee] as an example

Company: PWN

Region: Sumatra

Altitude: 1100-1600m

Variety: Typica

Processing Method: Wet-hulled

FrontStreet Coffee Brewing Recommendation

Dripper: Kono dripper

Water Temperature: 86°C

Dose: 15g

Coffee-to-Water Ratio: 1:15

Grind Size: Medium-fine (BG#6W)

*Reason for choosing the Kono dripper: The Kono dripper has fewer ribs, concentrated at the lower end, allowing the filter paper to cling tightly to the dripper wall, thereby restricting airflow and extending the contact time between water and coffee grounds, so that the coffee grounds are fully extracted and the full-bodied mouthfeel is enhanced.

FrontStreet Coffee Brewing Technique

Staged Extraction

First use 30g of water for blooming for 30 seconds; then pour in a slow circular stream until the water reaches 125g, then pause; when the water level drops and is about to expose the coffee bed, continue pouring until 225g and stop; when the water level drops again and is about to expose the coffee bed, remove the dripper. Starting timing from the bloom, the total extraction time is 2 minutes 00 seconds.

Flavor Description

Layered and complex, full-bodied and clean, with high balance, strong nutty and chocolate flavors, intertwined rich spice and caramel aromas, accompanied by fruity notes, and a long finish.

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