What Is Kopi Luwak Coffee and Why Is It So Debated?

Kopi Luwak is coffee made from cherries eaten by civets, whose digestion ferments the beans before they are collected, washed, and roasted. It comes mainly from Sumatra, Indonesia, at 1,600 to 2,100 meters, using Arabica processed by in-vivo fermentation. The cup shows herbal, nutty, dark chocolate, and fermented notes rather than a conventional clean profile.

The origin story dates to the early eighteenth century, when Indonesia was under Dutch colonial rule and locals were barred from picking coffee themselves. Civets, with a keen sense of smell, chose only the ripest red cherries, and workers collected the beans from the animals' droppings. Today the high price and animal-welfare questions keep the debate alive.

Kopi Luwak has always been a coffee bean with an extremely high level of discussion in the coffee world, and controversy surrounding it has never ceased. Some people are curious about how it was discovered, some care about what benefits and drawbacks drinking it has for the body, and others question whether the way it is obtained is too cruel. Front Street Coffee will sort out in this article the historical origin of Kopi Luwak, the source of its flavor, the true principle of in-vivo fermentation processing, and share Front Street's understanding of this bean and brewing plan. Whether you are motivated by curiosity or genuinely want to understand it, you can gain a relatively objective understanding from it, and it also provides friends who want to try it with a set of practical data for reference.

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When it comes to the coffee bean with the highest level of discussion in recent years, Kopi Luwak definitely ranks among the top. Many coffee lovers ask Front Street: Is the process of obtaining this bean really that cruel? Will its flavor be very strange? Since it is essentially excrement, why is the selling price still so high? With these questions in mind, Front Street will explain Kopi Luwak clearly from beginning to end in this article.

Front Street Coffee (FrontStreet Coffee) Indonesian Kopi Luwak coffee beans

Country: Indonesia

Region: Sumatra

Altitude: 1600-2100

Variety: Arabica

Processing method: civet in-vivo fermentation

Flavor: herbal, nutty, dark chocolate, fermented

The origin of Kopi Luwak

According to the information Front Street has, Kopi Luwak first came into people's view in the early 18th century. At that time, Indonesia was under Dutch colonial rule. The colonists opened coffee plantations in Sumatra and Java, sold coffee beans to the European market, and strictly forbade locals from picking and eating coffee cherries themselves.

Even so, the locals still wanted to taste what the coffee they had grown with their own hands was like. It happened that the workers growing coffee noticed that the coffee cherries in the plantation were often stolen and eaten by the local civets. Civets have an extremely keen sense of smell and specifically target the sweetest, ripest, fully red cherries. However, their digestive systems cannot break down coffee beans, and after the cherries are swallowed, they are excreted unchanged in the feces.

So the locals picked up the coffee beans excreted by the civets, washed them clean, and then roasted them. After tasting them, they found that the flavor was actually better than ordinary Sumatra coffee beans, and the mouthfeel was thicker. This was the origin of Kopi Luwak.

What does Kopi Luwak taste like?

Judging by the name alone, Front Street thinks most people would not have much expectation for its taste. But coffee beans produced in Sumatra have always been known for their richness. For example, Mandheling, which is loved by coffee fans around the world, is produced here. The single-origin bean with the highest order rate in Front Street's stores is Indonesian Mandheling, whose flavor is characterized by herbal and earthy notes. The coffee cherries eaten by civets themselves belong to the same flavor profile as Mandheling, and after in-vivo fermentation by the animal, they gain an extra layer of fermented flavor compared with Indonesian Mandheling, and this flavor can actually also be obtained through sun-dried processing. As for why Kopi Luwak tastes good, in essence it still comes down to the quality of the coffee beans themselves.

To put it simply in Front Street's words: Kopi Luwak is Mandheling with a fermented flavor. It is expensive because wild civets use their keen sense of smell to select the highest-quality coffee cherries, and because in-vivo fermentation is an extremely special processing method with extremely limited output, so naturally rare things are precious. Next, Front Street will explain what in-vivo fermentation processing actually is.

In-vivo fermentation processing

Front Street mentioned earlier that Kopi Luwak is formed after wild civets select high-quality coffee cherries and then undergo in-vivo fermentation, but not just any animal can be used for in-vivo fermentation of coffee beans.

According to Front Street's understanding, some merchants claim that although the coffee beans are not absorbed in the civet's body, the digestive fluid has already eroded the surface layer of the beans. The digestive fluid contains a special type of protease that can break the original protein chains of coffee beans, decomposing long-chain proteins into small molecules and forming short-chain peptides and amino acids.

But in reality, the above changes may occur only when the civet has long been eating nothing but coffee cherries. Under normal circumstances, because the coffee beans excreted by the civet cannot be broken down, they stay in the stomach for one or two hours before being excreted. Front Street believes that from a chemical perspective, such a short time is not enough to complete the series of transformations described above. The bean is basically still the same bean that was swallowed, and even if there is a flavor difference, it is only a slight change.

How to view civet Kopi Luwak

Front Street thinks that the principle of Kopi Luwak is exactly the same as Ethiopia's "Red Cherry Project." Wild civets rely on their keen sense of smell to pick out the ripest and most delicious cherries; the Red Cherry Project relies on manual visual screening to select high-quality fully red cherries. It can be seen that the premise of good coffee is built on ripe cherries.

As for those unscrupulous merchants who harm wild civets, they feed civets unripe or low-quality coffee cherries, and the quality of the coffee produced can be imagined. A wild civet has merely eaten the cherries it thought were delicious. What fault does it have? In the final analysis, the source of coffee flavor is always the coffee cherries themselves. So how one should view Kopi Luwak and what its quality is really like still depends on each person's judgment.

Every time Front Street releases a new bean, it conducts a large number of brewing tests and selects from them the set of data that best showcases its deliciousness, then brews it for coffee fans to taste. Next, Front Street will share the parameters for brewing Front Street Kopi Luwak.

Front Street Coffee (FrontStreet Coffee) brewing suggestions

In order to more fully present the herbal flavor and rich mouthfeel of Kopi Luwak, Front Street Coffee (FrontStreet Coffee) uses a medium-dark roast when roasting this bean. Medium-dark roasted beans have a higher dehydration rate and lighter weight. During brewing, the grounds will not completely sink to the bottom and are immediately absorbed after water is poured. Vigorous degassing causes bubbles to cover the coffee bed, thereby forming channels. The fresher the beans, the longer the channels last, and the faster the water level drops. Therefore, Front Street usually pours with a thick stream of water and slowly in circles.

When brewing Kopi Luwak, Front Street chooses the KONO dripper, because the only venting part of this dripper is at that one-quarter rib area. When the water level rises above the ribs, the amount of water in the dripper continues to increase, and the weight of the water brings pressure. Since the outlet is relatively small, it can extend the contact time between coffee particles and water, and use the water flow to drive more effective extraction of soluble substances, usually achieving the high richness that customers expect. Brewing parameters:

Water temperature 86-87°C

Grind size: BG#6w

Coffee-to-water ratio: 1:15 (15g coffee, 225ml water)

Brewing method:

Three-stage pouring method.

1. Pour 30g of water in the first stage and bloom for 25 seconds.

2. After the bloom ends, pour the second stage of water until the scale reads 125g. After pouring, wait until the water level drops by half.

3. When the coffee bed is about to be exposed, pour the third stage of water until the scale reads 225g. For coffee extraction, the total time is about 1'50-2'00 seconds.

Kopi Luwak flavor description: Herbal, nutty, smooth mouthfeel, rich.

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