What separates Golden Mandheling from standard Mandheling G1

Golden Mandheling and Mandheling G1 both come from Arabica beans grown in North Sumatra, Indonesia, but they differ in certification and grading. G1 is the top tier of Indonesia's green bean grading system, defined by a defect count below eleven. Golden Mandheling carries the PWN trademark, which sets additional quality and sourcing requirements.

The name Mandheling traces back to the Mandailing people, not a variety or a region. Most lots today are wet-hulled, a process that gives the cup its earthy, herbal, low-acid profile. Dark roasting is common for both grades, and brewers often use lower water temperatures and shorter ratios to keep the heavy body without pulling out bitterness.

Mandheling coffee occupies an important position in the Indonesian coffee landscape, but many enthusiasts are confused about the difference between ordinary Mandheling G1 and Golden Mandheling. This article starts with the origin of the name Mandheling, sorts out the G1 grading standards and the PWN Golden Mandheling trademark certification system, then deeply analyzes the similarities and differences between the two in coffee varieties and wet-hulling processing, and includes Front Street Coffee's roasting approach and brewing parameter suggestions. Whether you want to understand the certification threshold for Golden Mandheling or master the extraction techniques for dark-roasted Mandheling, this article provides detailed reference information.

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Indonesian Mandheling coffee enjoys a great reputation in the global coffee circle. The Mandheling family has many members, and many friends are confused about the difference between the two names Golden Mandheling and Mandheling G1. Front Street Coffee hopes to clarify the related knowledge of Mandheling coffee through this article.

Indonesian Mandheling coffee beans Mandheling is neither a coffee variety name nor a producing region name. Its name comes from a coffee-growing ethnic group—the Mandailing people. During World War II, Japanese soldiers were stationed in Indonesia. After returning home, they could not forget the taste of the local coffee, so they asked local Indonesians through trade channels to help purchase high-quality coffee beans. When asked what these beans were called, the locals mistakenly thought the other party was asking about their identity and replied "Mandailing." After multiple transliterations, it eventually evolved into the name "Mandheling."

Today, when people mention Mandheling coffee, they usually refer to Arabica beans from North Sumatra, Indonesia. Among them, the two most famous producing regions are the Aceh region centered on Lake Laut Tawar and the Lintong region centered on Lake Toba, collectively known as the "Two Lakes, Two Man."

Mandheling G1 coffee beans It can be said that G1 represents the finest tier among Mandheling coffees. G1 is the highest grade in Indonesia's green bean grading system, and its criterion is fewer than 11 defective beans per 300 grams of green beans. Because Mandheling coffee has always used bean size as a quality reference, most Mandheling G1 on the market reaches 18 mesh in size. As long as green beans from the North Sumatra producing region meet the G1 grading standard, they can be called Mandheling G1 coffee beans.

Golden Mandheling coffee beans Golden Mandheling is not just a designation; it is also a registered trademark held by the Indonesian green bean merchant PWN. Only Golden Mandheling produced by PWN is truly Golden Mandheling in the strict sense, and bearing the PWN mark means quality is guaranteed. PWN's Golden Mandheling undergoes three rounds of hand sorting and one round of machine screening, and its bean appearance is outstanding. PWN has registered Golden Mandheling as a trademark; in other words, only Golden Mandheling produced by PWN deserves the name "Golden Mandheling." Many beans on the market that are not produced by PWN but are marketed under the Golden Mandheling name should actually fall into the category of specialty Mandheling.

Front Street Coffee's Golden Mandheling coffee has certificate certification from PWN.

Front Street Coffee Front Street PWN Golden Mandheling

Producing region: Gayo Mountain, Aceh, North Sumatra

Altitude: 1100-1600m

Variety: Ateng

Processing method: wet-hulled

Grade: G1, triple hand-sorted

Aceh Gayo Mountain is located in a corner at the northernmost tip of Sumatra. Coffee cultivation in Gayo Mountain is mainly concentrated in Takegon town and the hillside areas around Lake Tawar. The altitude of the planting areas is generally between 1100 and 1600 meters, and the coffee produced has consistently been of excellent quality, but in earlier years coffee exports from the region were quite difficult due to political instability. In recent years the situation has become more stable, Aceh's coffee-growing industry has been able to develop, and its quality has also surpassed that of the Lintong region.

Compared with other Mandheling coffees, Golden Mandheling shows more prominent sweetness and a sucrose-like aroma. Although everyone knows that only Mandheling produced by PWN can be called Golden Mandheling, PWN's annual output is actually quite limited, so there are many large-screen selected Golden Mandheling beans on the market that are not produced by PWN. If the source cannot be confirmed, you might as well ask the seller to show the certificate that comes with the beans from PWN.

Coffee variety The coffee variety used in Golden Mandheling is "Ateng." This name sounds quite unfamiliar. In fact, the way Indonesia locally names coffee varieties differs from outside usage. For example, what Indonesia calls Tim Tim is internationally known as Timor. Ateng is the local Indonesian name for Catimor. The Ateng variety performs very well in both cultivation and flavor in the Aceh region. Ateng coffee grown in Aceh does not carry the grassy, gamey taste commonly found in Catimor varieties.

Coffee processing method Golden Mandheling coffee is processed using the wet-hulling method. Wet hulling is a processing technique unique to Indonesian producing regions. Indonesia's humid and rainy climate makes it difficult to implement the natural process, which requires long periods of sun drying. This unique wet-hulling method also gives Indonesian coffee its signature herbal and spice notes as well as its full-bodied flavor characteristics.

Wet-hulling process 1. Depulping/pulping As with the washed process, harvested coffee cherries need to be processed as soon as possible. In Indonesia, coffee cherries are usually depulped by smallholder farmers themselves, and this step removes the skin and part of the pulp of the cherries.

2. Washing The depulped coffee beans are soaked in water for one to two hours while being rubbed against each other to remove some of the mucilage.

3. Drying After soaking, the coffee beans undergo their first drying at the farmers' homes, during which the moisture content drops to between 20% and 35%.

4. Collection The coffee beans that have completed their first drying are taken to market for sale. At this point the mucilage layer on the beans has not yet solidified and is in a sticky state. These coffee beans are collected in bulk by buyers and transported to processing plants for further processing.

5. Drying The coffee beans that have been collected and delivered to the processing plant first undergo a second drying, which lowers the moisture content to about 18%.

6. Hulling/wet hulling After the second drying, the coffee beans are sent to a huller for wet hulling, a process that removes the mucilage and parchment layer. What differs from other processing methods is that wet hulling removes the parchment layer before the coffee beans' final drying, whereas methods such as washed processing keep the parchment layer on during drying and only remove it before export shipment.

7. Drying & storage Finally, the coffee beans are sent once more to the drying yard for final drying, reducing the moisture content to 11%. Once drying is complete, the coffee beans are bagged and stored in warehouses, waiting to be shipped for export.

Front Street Coffee roasting Golden Mandheling has a high-quality herbal aroma, especially prominent caramel sweetness, steady and elegant fruit acidity, rich sweetness, and a full-bodied, wild spice flavor. Generally, Lintong Mandheling is best roasted until after second crack before being discharged, which can effectively reduce off-flavors, but Golden Mandheling can also show good transparency and sweetness when discharged before second crack, allowing more room for roasting flexibility.

What grind size should be used to brew Mandheling? Because Mandheling coffee uses a deep roast, the bean structure is relatively loose, and coffee compounds are easily extracted. To avoid too many bitter compounds entering the coffee liquid, the grind size should be slightly coarser. Based on the standard used by Front Street, the passing rate through a 0.85mm standard sieve is about 57%.

Use a 1:13 coffee-to-water ratio, with 20 grams of coffee grounds; a lower coffee-to-water ratio makes the coffee taste richer. Control the water temperature at 87°C, and choose a Kono dripper.

Brewing process: slowly add the coffee grounds, keeping them as level as possible during pouring and avoiding shaking the dripper (shaking will reduce the spacing between coffee grounds, which is not conducive to degassing during blooming). In the first stage, pour 40g of water in a small circle in the center, and let it bloom for 30 seconds; the coffee bed will gradually expand and puff up into a "hamburger" shape.

In the second stage, pour 120g of water in circles from the center outward, keeping the pouring height as close to the coffee bed as possible, slowing the motion, and avoiding excessive agitation. In the final stage, pour 100g, and end extraction once all the coffee liquid in the dripper has flowed into the server. The total extraction time is 2 minutes.

Flavor: spice, herbs, caramel, pine, nuts, chocolate.

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