What Sets Golden Mandheling Apart From Regular Mandheling?

Golden Mandheling is the higher grade of Sumatra's Mandheling Arabica, selected for stricter sorting standards and fewer defects than regular Mandheling. Both share the herbal, earthy, and woody notes the name is known for, but Golden Mandheling tends to show a cleaner, milder cup because defective beans are removed more thoroughly before export.

Mandheling is not a single variety but a trade name for Arabica coffee beans grown on Sumatra, a cultivation area the Dutch expanded in the 18th century around Lake Toba and Lake Tawar. Variety, growing environment, and processing method together shape the herbal flavor, and the wet-hulling process used locally strongly influences the final cup.

Mandheling coffee has always been known for its distinctive herbal, earthy, and woody notes. This flavor profile draws enthusiasts in droves while repelling others. In recent years, many coffee lovers have noticed that Mandheling's herbal taste seems to have become milder. What exactly lies behind this evolution in variety, origin, and processing methods? This article will take an in-depth look at the causes of Mandheling's herbal flavor, compare the differences between Golden Mandheling and regular Mandheling in terms of variety selection, processing methods, and sorting standards, and reveal how the wet-hulling process affects the final flavor in the cup. At the same time, we will also introduce the PWN Golden Mandheling recommended by Front Street Coffee, giving you a glimpse into the allure of truly high-quality Mandheling.

The herbal aroma of Mandheling coffee is typically described as resembling herbs, earth, and woody notes. It emerges after the rich mouthfeel, unique and full of wildness. Because of this, Mandheling has always been a coffee bean with polarized reviews. Those who love this aroma become deeply obsessed, while those who cannot accept it stay far away.

However, in recent years many coffee enthusiasts have noticed that the herbal flavor in Mandheling seems to have diminished—at least it is no longer as pronounced as it once was. As a result, many people have started digging deeper, trying to figure out why this herbal taste has become milder and where it actually comes from.

In fact, like the formation logic of other coffee flavors, Mandheling's herbal taste cannot be separated from three key elements: variety, growing environment, and processing method.

First, it must be made clear that Mandheling does not refer to a specific coffee variety, but rather is a general term for all Arabica coffee beans grown on the island of Sumatra. Through a series of misunderstandings, Arabica coffee beans from Sumatra were sold under the name "Mandheling" and became famous ever since. Thereafter, Arabica coffee from the island was often sold under the Mandheling name. Front Street has shared this story many times, and I believe everyone is already familiar with it, so we won't repeat it here.

Sumatra has a rather long history of coffee cultivation. As early as the 18th century, the Dutch expanded the coffee industry to this island.

The main coffee-producing regions on the island are distributed around Lake Toba and Lake Tawar. Among them, Lake Toba is famous for the Lintong region, while Lake Tawar is known for the Gayo Mountain region. The elevation of these regions mostly ranges between 1,100 and 1,600 meters, which is an ideal height for growing coffee. For this reason, Front Street's daily drinking series selected Mandheling from the Lintong region as the representative Indonesian daily coffee, while Front Street Golden Mandheling comes from the Gayo Mountain region.

Similar to the situation in many origins, the Dutch initially planted pure-blooded Arabica varieties such as Typica and Bourbon on the island. However, this good fortune did not last long. The invasion of coffee leaf rust caused Arabica varieties to wither away one after another. In order to maintain production, the Indonesian authorities had to continuously introduce new varieties. Gradually, Indonesia became a "melting pot" of coffee varieties.

The varieties more commonly planted on the island include: Ateng, TimTim, Typica, Caturra, and Robusta. In Mandheling coffee, the most common varieties are Ateng and TimTim.

Both Ateng and TimTim are varieties hybridized from Arabica and Robusta. Simply put, Ateng is equivalent to Indonesia's local Catimor, while TimTim is Indonesia's local Timor. Since both varieties carry Robusta genes, they inherently possess some of the herbal and woody notes characteristic of Robusta—just relatively less intense in flavor.

(The image shows the Ateng variety)

What is most commonly considered the cause of Mandheling's strong herbal flavor is actually the region's unique processing method—wet hulling. Let's first understand the basic process of wet hulling:

First, use a depulper to remove the skin and flesh of the coffee cherries, and wash the coffee beans. Then move the beans outdoors to dry; after about 3 to 4 days of drying, when the moisture content of the coffee beans drops to around 30% to 40%, use a huller to remove the parchment layer from the surface of the beans, which are in a semi-hard, semi-soft state; finally, dry for a few more days until the coffee beans reach a moisture content of 12% to 13%.

From the introduction above by Front Street, it can be seen that wet hulling has a significant advantage—short drying time. Compared with other processing methods, wet hulling requires very little drying time because the skin, flesh, and parchment layer of the coffee beans are removed before drying, thereby greatly shortening the drying cycle.

The reason Indonesia needs to adopt wet hulling is that the local weather is unpredictable year-round, with short sunshine hours and a humid environment. If sun-drying or other processing methods requiring long periods of sunlight were used, it would be very easy for the coffee beans to spoil due to excessively long drying times. At this point, I believe everyone will have another question: "Why does wet hulling intensify the herbal flavor of coffee?"

To be fair, Front Street believes that wet hulling itself is not the main reason. Rather, it is the rough practices during the operation that cause Mandheling's herbal flavor to be intensified.

First, the beans are forcibly stripped of their parchment layer by a huller while in a semi-hard, semi-soft state. In this state, the parchment layer of the coffee beans is harder to remove, so the huller operates rather aggressively, and the beans are easily cracked under pressure. Compared with intact coffee beans, beans with chips and cracks are more susceptible to contamination.

(The one on the right in the image is a parchment bean cracked by the huller, but if it has not been contaminated, it does not count as a defective bean.)

At the same time, the coffee beans are dried after the parchment layer has been removed, and the drying location is often concrete ground or a compacted dirt road. After losing the protective shell of the parchment layer, the beans are exposed naked to this environment for drying, making it easier for them to come into direct contact with dust and thus be contaminated. The herbal taste in the coffee beans is also enhanced as a result. That is why people believe that it is wet hulling that increases the herbal flavor in coffee.

In summary, the main reasons Mandheling carries a relatively strong herbal flavor come from variety and processing method (especially rough practices during processing).

But as Front Street mentioned earlier, in recent years Mandheling's herbal flavor has already diminished considerably. Combining the analysis above, one can infer that this is because the rough practices during processing have been improved.

For example, greater care is now taken in drying, keeping the beans off the ground and turning them multiple times, which reduces the probability of contamination while improving drying uniformity; or manually sorting to remove defective beans, thereby lowering the proportion of defective beans in the coffee. When the probability of coffee beans being contaminated decreases and the number of defective beans is reduced, the herbal taste naturally becomes less pronounced. In particular, the high-quality representative of Indonesian coffee on Front Street's bean list—Front Street PWN Golden Mandheling—has almost none of this herbal taste. Instead, it offers a comforting, mellow aroma, and drinks clean and transparent.

The reason Front Street PWN Golden Mandheling can achieve this effect is naturally inseparable from stricter sorting standards. Whether in variety or processing method, its requirements are more stringent than those of regular Mandheling.

In terms of variety selection, the variety currently used in Golden Mandheling produced by PWN is Ateng. Although it is also a type of Catimor, it has a smaller proportion of Robusta genes. Because it is a variety produced by backcrossing Catimor with Typica, the Robusta genes are diluted, resulting in a more excellent flavor and less herbal taste.

After these coffee beans undergo meticulous processing, they also go through three rounds of manual hand sorting. The main purpose of sorting is to remove beans with defects, small size, and poor appearance. What remains are coffee beans that are large, plump, and have very few defects. With fewer defective beans, the cleanliness of the coffee naturally improves. Combined with the fact that the variety is Ateng, which has a relatively small proportion of Robusta genes, the herbal flavor in this coffee is negligible.

That is why in Golden Mandheling it is difficult for us to taste herbal flavors. Instead, there is a soft and unique aroma, along with flavor notes of chocolate, caramel, and spices—truly outstanding.

Currently on the market there are many different versions of "Golden Mandheling," such as 20-mesh Golden Mandheling, 21-mesh Golden Mandheling, Ding Shang Golden Mandheling, and so on. But only the Golden Mandheling produced by PWN (Puwani) is the real Golden Mandheling. This is because Golden Mandheling is a product launched by PWN, and the trademark was registered in 2003.

How can you distinguish the genuine from the fake? It is certainly difficult to tell just by looking at the beans, but when purchasing Front Street PWN Golden Mandheling green beans, they always come with a burlap sack printed with PWN and the corresponding certificate. When buying normally, you can also pay attention to whether the seller shows these two accompanying items, which can serve as a way to verify authenticity. For example, what Front Street sells on an online Taobao/Tmall store is Golden Mandheling produced by PWN, and these two items are shown on the product detail page for your reference~

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