What defines single-origin coffee beans?

Single-origin coffee beans come from one source and can be traced back to a specific origin, sometimes down to a single plot of land. Region, variety, and processing method are the three factors that decide flavor. Africa, Asia, and Latin America each show distinct tendencies, and a single store may carry more than fifty such coffees.

The coffee beans process matters as much as the origin: natural, washed, and wet-hulled methods shape sweetness, acidity, and body. Traceability starts with knowing estate operators and visiting origins before buying green beans. Varieties such as Yellow Bourbon carry their own character into the final cup.

Step into the world of specialty coffee, and you'll find the choices are far richer than you might imagine. At just one Front Street Coffee location, there are over fifty single-origin coffees on sale, each carrying the unique character bestowed by its different origin. This article begins with the definition of single-origin coffee, explains what traceable single-origin coffee means, and then takes a deeper look at the three major factors that determine flavor—region, variety, and processing method. It then sorts through the flavor tendencies of the three major regions—Africa, Asia, and Latin America—and explains them in conjunction with the three common processing methods: natural, washed, and wet-hulled. The article also compiles information on the region, altitude, variety, and flavor of several representative Front Street coffee beans, for coffee lovers to use as a reference when choosing according to their taste.

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The world of specialty coffee offers quite a diverse range of options. At the FrontStreet Coffee store alone, the single-origin coffees on display number more than fifty. These single-origin beans present distinct layers of flavor, drawing batch after batch of coffee lovers into them. Next, Front Street will use this article to talk about the classification and basic knowledge of single-origin coffee beans.

What Are Single-Origin Coffee Beans

First, let's explain the concept of single-origin coffee beans. So-called single-origin coffee refers to coffee brewed from coffee beans from a single source, and it can be traced all the way back to the coffee's original origin. This traceability does not stop at the country level; it can even be pinpointed to a specific plot of land. By getting to know the operators of coffee estates and visiting the coffee origins, one can understand the story behind the origin from the source, and then complete the purchase of green beans.

Friends who frequently visit the FrontStreet Coffee store should know that Front Street's pour-over single-origin coffees can all be traced to specific estate regions, and the outer packaging of each bag of coffee beans clearly labels this basic information. The reason for doing this is that there are many cases of passing off inferior goods as superior on the market—even if the same region is labeled, differences in altitude, climate, and other conditions mean the flavor of the coffee beans can vary in quality. Therefore, coffee beans from estates with a good reputation and guaranteed quality are naturally more reassuring, and also make it easier for coffee lovers to understand their background.

What Is Regional Flavor

Coffee is essentially a crop, and it is comprehensively affected by many conditions such as altitude, climate, soil, cultivation techniques, and green bean processing methods. Moreover, coffee is just a broad general term, and within it there are many varieties. For example, the pour-over single-origin coffee beans most commonly used for daily drinking at Front Street's store belong to the Arabica species, which is further divided into specific categories such as Typica and Bourbon. These all influence the flavor expression of the coffee beans from the source, which is what FrontStreet Coffee often refers to as regional flavor.

Specialty coffee varieties are likewise all derived from Arabica, though there are also some hybrid varieties of Arabica and Robusta. For example, Indonesia's well-known Front Street PWN Golden Mandheling launched an Ateng variety of coffee beans in 2020, which is precisely the product of combining Robusta and Arabica.

What Factors Determine the Flavor of Single-Origin Coffee

The flavor of a coffee bean is mainly influenced by three major factors: coffee region, variety, and processing method. Coffee regions are roughly divided into Asia, Africa, and Latin America, and each region has its own signature flavor. As for coffee varieties, as Front Street said earlier, most single-origin coffees belong to the Arabica species. As for coffee processing methods, there are even more types, with common ones including washed processing, natural processing, honey processing, and so on. These factors together determine the direction of the coffee's flavor. Below, Front Street will focus on these points to recommend some single-origin coffees for coffee lovers.

Flavor Characteristics of Coffee from the Three Major Coffee Regions

As mentioned earlier, coffee regions are mainly divided into Africa, Asia, and Latin America. The African region is known for its bright acidity. For example, Ethiopia's Front Street washed Yirgacheffe has a fascinating citrus fruit acidity that is deeply loved by a broad range of coffee lovers. Asian coffee is known for its full body and spicy, herbal notes. For example, Asia's Front Street Indonesian Mandheling coffee, with its unique herbal spice flavor paired with a full-bodied mouthfeel, has captured batch after batch of coffee fans. Latin American coffee flavor falls between the two, generally more balanced and richly varied, but its main flavor profile is dominated by nuts and cocoa. Among the beans at Front Street's store, Front Street Brazil Queen's Estate coffee beans are well known for their rich nutty and cocoa-toned character.

Front Street Ethiopia Yirgacheffe Washed Gutingding Coffee Beans

Country: Ethiopia

Region: Yirgacheffe

Altitude: 1900-2300m

Variety: Local heirloom varieties

Processing Method: Washed

Flavor: Tropical fruit, cream, honey, berries, citrus

Front Street Indonesia Lintong Mandheling Coffee Beans

Country: Indonesia

Region: Sumatra (Lintong)

Altitude: 1100-1600m

Variety: Typica, Caturra

Processing Method: Wet-hulled

Flavor: Baked toast, nuts, caramel, pine, herbs

Front Street Brazil Queen's Estate Yellow Bourbon Coffee Beans

Country: Brazil

Region: São Paulo State (Queen's Estate)

Altitude: 1400-1950m

Variety: Yellow Bourbon

Processing Method: Semi-natural / natural

Flavor: Nuts, cream, peanut, fermented fruit, cane sugar

Common Coffee Processing Methods for Single-Origin Coffee

The representative coffees from the three major regions listed above each have distinct flavor characteristics, and the processing methods they use are also different. Next, Front Street will explain the differences among these three processing methods.

Natural Processing Method

The natural processing method is the oldest method, also called the "dry method." It does not require particularly high-end equipment; it only needs a stretch of continuous sunny weather to carry out, and the entire drying process takes 27 to 30 days. Because of this, it has relatively strict requirements for climate conditions and is better suited to countries in arid regions. Ethiopia is a producer country that widely uses the natural processing method, where the altitude is very high, the climate is dry, and water resources are scarce. However, it should be noted that although natural processing is simple to carry out, the coffee beans produced are not attractive in appearance and will have some cracks on the surface, so they are not very pleasing to the eye.

Washed Processing Method

Most of Front Street's coffee beans from different regions use washed processing, especially Front Street's daily-drinking bean series. Washed coffee beans perform more cleanly and present a clearer flavor, allowing the truest taste of the coffee fruit to be restored. Therefore, Front Street often says that washed coffee beans are the guiding light for understanding the flavor of a region.

Wet-Hulled Processing Method

Wet-hulled processing is a method of processing coffee beans quickly: first remove the skin and pulp, then after a brief fermentation, spread them out to dry, then remove the mucilage and parchment layer, and continue to complete the later stage of drying until the moisture content drops to 12%. Mandheling coffee beans processed by the wet-hulled method clearly show compression cracks of varying degrees. FrontStreet Coffee believes that this phenomenon is not a defective bean, but an inherent characteristic of Mandheling coffee beans themselves.

As Front Street said earlier, the wet-hulled method causes "defects" in coffee beans because when the parchment is removed, the moisture content of the coffee beans is still as high as 20-24%, whereas general processing methods wait until the moisture content drops to 10-12% before hulling. In a semi-dry state, the parchment sticks to the surface of the green beans, and removing the parchment is more difficult than in a fully dry state, requiring greater friction during the hulling process.

In addition, there are various other coffee processing methods, and the pour-over single-origin coffee beans produced will also show different flavor expressions. So Front Street will now recommend these pour-over coffee beans to all you coffee fans.

Front Street Costa Rica Canet Estate Musician Series Mozart Coffee Beans

Country: Costa Rica

Region: Tarrazú

Altitude: 1800m

Variety: Caturra, Catuai

Processing Method: Anaerobic honey processing

Flavor: Raisin acidity, berries, floral fragrance, fermented wine aroma

Front Street Costa Rica Canet Estate Musician Series Bach Coffee Beans

Country: Costa Rica

Region: Tarrazú

Altitude: 1950m

Variety: Caturra

Processing Method: Raisin honey processing

Flavor: Fermented wine aroma, berries, fruit tea note

Front Street Kenya Azalea Coffee Beans

Country: Kenya

Region: Asali (Honey Processing Station)

Altitude: 1550-1750m

Variety: SL28, SL34

Processing Method: 72-hour washed processing

Flavor: Snow pear, smoked plum, yellow sugar, cherry tomato, plum

Front Street Honduras Sherry Cask Fermented Coffee Beans

Country: Honduras

Region: Marcala (Mocha Estate)

Altitude: 1500-1700m

Variety: Caturra, Catuai, Pacas

Processing Method: Fine washed + whiskey cask fermentation

Flavor: Vanilla, cream, fermented wine aroma, dark chocolate

Front Street Colombia San Jose Estate Coffee Beans

Country: Colombia

Region: Caldas

Altitude: 1750m

Variety: Castillo

Processing Method: Fine washed rum cask fermentation processing

Flavor: Rum, liqueur chocolate, tropical fruit, maple syrup

Front Street Colombia Rose Valley Coffee Beans

Country: Colombia

Region: Tolima (Big Tree Estate)

Altitude: 1700m

Variety: Caturra

Processing Method: Anaerobic double enzyme washed processing

Flavor: Honey, juicy mouthfeel, strawberry

The above is Front Street's compilation of single-origin coffee knowledge and recommendations. We hope it can help coffee fans who want to learn about single-origin coffee, making it easier to choose single-origin coffee beans that suit their taste in the future.

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