How does the coffee belt shape regional coffee flavor?

The coffee belt is the tropical zone roughly between 25 degrees north and south latitude, where average temperatures stay between 16 and 25 degrees Celsius with no frost and 1600 to 2000 millimeters of annual rain. Within it, more than 70 producing countries fall into three regions: Africa, Latin America and Asia-Pacific, each with distinct cup profiles.

African beans, led by Ethiopia and Kenya, show rich aroma and lively fruit acidity but often a thinner body. Latin American coffees tend toward balance and sweetness, while Asian beans are heavier and earthy. Elevation matters too: beans grown above 1500 meters are usually of better quality, and grading systems reflect that.

The coffee belt encircles the equator, nurturing the distinctive coffee flavors of three major producing regions: Africa, Latin America, and Asia. Front Street Coffee currently offers about 50 types of beans. This article systematically sorts out the flavor differences and representative products of coffee beans from each region, from production area classification and variety characteristics to processing methods and grading systems, helping coffee enthusiasts build a clear cognitive framework for production areas.

Front Street Coffee currently offers nearly 50 single-origin beans, but looking globally, according to the distribution of the coffee belt, all coffee beans can be classified into three major producing regions: Latin America, Asia-Pacific, and Africa. Today, Front Street Coffee will guide everyone through the differences among these three major regions one by one.

How Production Areas Are Divided: The Concept of the Coffee Belt

Coffee is a tropical crop. The zone centered on the equator, between approximately 25 degrees north and south latitude within the tropics, is called the Bean Belt or Coffee Belt (Coffee Zone). In this region, the average annual temperature remains between 16-25°C, there is no frost, and rainfall is about 1600-2000mm. Coffee trees are mostly planted at elevations of 500-2500m on highlands or mountains, and coffee beans grown above 1500m are usually of better quality. Currently, there are more than 70 major coffee-producing countries worldwide, which can be grouped into three major producing regions: Africa, Latin America, and Asia.

African Coffee-Producing Countries

Africa is the birthplace of coffee and occupies an irreplaceable position in the coffee industry. Although the coffee variety library is already very large today, those unnamed wild coffee varieties in Africa remain, in the eyes of researchers, the most promising treasure trove. Through cupping African beans, Front Street has found that the common flavor characteristics of this region are rich aroma and captivating fruit acidity, with bright and lively acidity that leaves a deep impression. The shortcoming is that the body is often on the thinner side, and the sweetness is not prominent enough. Representative producing countries are Ethiopia and Kenya.

1. Ethiopia (Front Street Ethiopian coffee flavor characteristics: rich floral and fruity aroma, lively citrus and berry acidity)

One thing that makes Ethiopia completely different from most coffee-producing countries is that it has never been eroded by colonial culture and still retains the most primitive and pure attitude and rituals toward coffee. Coffee's status in Ethiopia is like tea in China—it is part of daily life. The Ethiopian coffee ceremony involves drinking three rounds: the first round is called Abol, led by an elder who gives blessings; the second round is called Tona, when everyone begins to chat; the third round is called Beraka, meaning the joyful conclusion of the ceremony. This ritual is more about enhancing interpersonal interaction, just as Chinese people first set out tea utensils when guests visit or when doing business.

【Ethiopian Coffee Cultivation Systems】

Ethiopian coffee cultivation is divided by scale and model into:

● Forest coffee (8-10%): coffee trees grow symbiotically with other crops in primary forests, without manual management, and farmers periodically pick coffee cherries.

● Forest-semi-forest coffee (30-35%): coffee trees are planted between the forest and farmers' living areas. Like forest coffee, it is naturally produced, but farmers manage the cultivation area and grow other cash crops.

● Garden coffee (50-55%): coffee trees are planted around farmers' living areas, mostly cultivated by the farmers themselves.

● Plantation coffee (5-6%): large private growers with more processing facilities and capacity.

【Ethiopian Coffee Beans】

Anyone who often drinks Ethiopian coffee must have heard the name Heirloom native variety. Most Ethiopian varieties are named this way because there are simply too many varieties in Ethiopia—it can be called a natural gene bank of Arabica. On the one hand, identification and classification are extremely difficult; on the other hand, the Ethiopian government, for protection reasons, is unwilling to disclose variety information, so they are collectively called Heirloom native varieties. Precisely because the varieties are so diverse, with mixed planting and mixed harvesting, Front Street believes this is why Ethiopian beans vary in size.

【Ethiopian Coffee Bean Processing Methods】

In many people's impressions, Ethiopia has always mainly used the washed processing method. Front Street believes Ethiopia favors washing so much because washing can highlight Ethiopia's floral aroma and citric acidity, bringing a fresh and light feeling. You can taste this rich flavor by purchasing Front Street Gutingding.

In fact, Ethiopia originally mostly used the natural sun-dried processing method. In 1972, after the Ethiopian government introduced the washed processing method from Central and South America to improve coffee quality, Ethiopian coffee became fresher and more refined, winning more people's affection. Front Street Coffee believes that washed coffee has more obvious acidity, good cleanliness, medium mouthfeel, and the most consistent raw bean quality; while natural coffee, compared with washed, has lower acidity, higher sweetness, clear mouthfeel, but slightly lower cleanliness, with more berry-like notes and greater complexity in flavor.

【Ethiopian Coffee Bean Grading】

The definition of Ethiopian coffee grades is relatively complex. Originally, the Ethiopian Ministry of Agriculture had a department called the Cupping and Liquoring Unit (CLU), specifically responsible for approving the quality of exported coffee. Washed coffee export grades were divided into G1 and G2; natural coffee export grades were G3, G4, and G5, meaning the highest grade for natural coffee was G3. The Ethiopian Commodity Exchange (ECX), established in 2012, redefined the grading. Washed grading remained unchanged, while natural coffee saw G1 for the first time. This is why Ethiopian natural G1 and G2 can now be seen on the market, while G3 is gradually becoming less common. Ethiopian single-origin coffee beans such as Front Street Gutingding, Front Street Red Cherry, and Front Street Huakui all belong to the G1 grade.

【Ethiopian Production Areas】

Ethiopia has a total of 9 coffee-producing areas: Sidamo, Yirgacheffe, Harrar, Limu, Illubabor, Gimbi, Teppi, Bebeka, and Jimma. Among them, Yirgacheffe, Sidamo, Limu, and Harrar belong to Ethiopia's specialty coffee-producing areas. Yirgacheffe and Sidamo are especially famous.

The Yirgacheffe production area is a small town in Ethiopia at an altitude of 1700-2100 meters. It is one of the highest coffee-producing areas in the world and also synonymous with Ethiopian specialty coffee. In the rift valley represented by the Misty Valley, fog fills the air year-round, the seasons are like spring, breezes are gentle, and the climate is cool and humid. Thousands of coffee trees flourish and multiply here, nurturing Yirgacheffe's unique terroir with interwoven and ever-changing floral and fruity aromas. Front Street believes that the so-called Yirgacheffe flavor refers to rich citrus-lemon fruit acidity, a strong jasmine floral aroma, a light and elegant mouthfeel with tea-like qualities, drinking like a refreshing, clean lemon tea.

The Sidamo production area (also translated as Sidama or Sidamo) is a province in Ethiopia and the superior administrative unit of the famous Yirgacheffe. The Sidamo production area refers to the production areas in Sidamo Province other than Yirgacheffe. It is Ethiopia's southernmost coffee-producing area, with an average altitude of 1400-2000 meters. The coffee produced here has obvious sweetness and is known as sweet coffee. Front Street believes that natural Sidamo has a faint floral aroma, rich berry acidity, and a fermented note, with a smoother mouthfeel than washed Sidamo.

Front Street Yirgacheffe Gutingding Cooperative Coffee Beans Region: Yirgacheffe Gedeo Zone production area Altitude: 1900-2300m Variety: Heirloom Processing method: Natural Grade: G1 Brewing flavor: The overall mouthfeel is solid, with prominent fermented aroma and tropical fruit. As the temperature changes, berry and creamy flavors emerge, and the lingering citrus sweet-and-sour sensation between the teeth and lips is quite persistent.

Front Street Coffee Roasting Suggestions for Gutingding Coffee Beans

Charge when the roaster temperature reaches 175°C, set the airflow to 3, and the heat to 120; the turning point is at 1'32". When the roaster temperature is 140°C, keep the heat unchanged and open the airflow to 4; at this point the bean surface turns yellow, the grassy smell completely disappears, and the dehydration stage begins. At 166°C reduce the heat to 100, and at 176°C reduce the heat to 80, keeping the airflow unchanged. At 8'28", ugly wrinkles and dark spots appear on the bean surface, and the toasted bread smell clearly turns into coffee aroma, which can be defined as the prelude to first crack. At this time, listen carefully for the sound of first crack. First crack begins at 9'38"; adjust the airflow to 5 (adjusting the heat must be done very carefully, not so low that there is no cracking sound). After first crack, develop for 1'30" and drop at 193.5°C.

2. Kenya (Front Street Kenyan coffee flavor characteristics: strong acidity, prominent berry and cherry tomato notes)

As everyone knows, coffee originated in Ethiopia in Africa and was discovered as early as the 9th century. However, neighboring Kenya did not introduce coffee until nearly the 20th century. During that period, coffee almost traveled all the way around the world before returning to Africa. At that time, the coffee world also began to undergo new changes, and Kenya can be said to be a witness to and promoter of this transformation.

【Kenyan Coffee Beans】

L-28 and SL-34. These are two of the 40 varieties produced by the research program led by Guy Gibson of Scott Laboratories, cultivated and named by the laboratory in 1930. According to SL laboratory botanists, SL28 and SL34 are genetic variants. They account for the vast majority of Kenya's high-quality coffee production, though these varieties are susceptible to leaf rust. SL34 has French missionary, Bourbon, and more Typica ancestry. With bronze leaf color and broad-bean-shaped seeds, Front Street Kenyan beans of this variety have excellent sweetness, balance, and complex, ever-changing flavors, as well as distinctive citrus and smoked plum characteristics.

【Kenyan Coffee Bean Grading】

Kenya grades coffee by bean size and cupping results. According to bean size, shape, and hardness, from high to low, the grades are AA or AA+, AB, PB, C, E, TT, and T. For AA and AB grade green coffee beans, an additional special grading based on cupping results is added (not officially recognized by the Kenyan government, but established by exporters), from high to low: TOP, PLUS (+), FAQ.

【Kenyan Coffee Bean Processing Methods】

Kenya adopts a repeated cycle processing method of fermentation followed by washing. After harvesting, the coffee is processed on the same day, selecting the highest-quality coffee cherries for pulping and fermentation. The fermentation time is 24 hours, after which the beans are washed with clean river water. Then they are fermented again with clean river water for 24 hours and washed again. After repeating this cycle 3 times, reaching 72 hours, it is called the Kenyan 72-hour fermentation washed processing method, abbreviated as 【K72】. Front Street believes that coffee beans processed with the Kenyan 72-hour fermentation washed method undergo long fermentation at low temperatures and are finally dried and dehydrated to completion, giving the beans a brighter, cleaner yet fuller flavor.

【Kenyan Production Areas】

Kenya has the following 6 major production areas:

①Nyeri and Murang'a: The bright acidity and full body that most people love are both found here. Plus, it is not far from Nairobi, so many foreign buyers visit during the harvest season.

②Nyeri: Bright blackberry and full-bodied richness, plus citrus and even floral aromas. The specialty beans here are also a major contributor to Kenya's international fame.

③Kirinyaga: The flavor here is also bright fruit acidity, with medium body and delicate sweetness.

④Embu: The acidity here is not as strong as in Nyeri, and the flavor is balanced and clear, with most finishes performing well.

⑤Machakos: This area is on the rise, famous for clean fruit acidity and delicate flavors, medium mouthfeel, and a delicate, fresh finish. In recent years it has attracted many buyers.

⑥Western production areas: Their flavors are very different from the central production areas, attracting buyers with medium-full sweetness and milder flavors. Some washing stations in this area rely on hazelnut and mild fruit notes, and are also widely favored by buyers who dislike bright acidity.

Front Street Kenya Cherry Tomato Coffee Beans

Region: Thika, Kenya

Processing station: Asali Honey Processing Station Altitude: 1550-1750 meters Grade: AA TOP Variety: SL28, SL34 Processing method: Kenyan 72-hour washed Brewing flavor: Smoked plum and cherry tomato notes on entry, with strong, full-bodied acidity. Prominent sweetness in the middle with a juicy feel. The finish has berry aroma and brown sugar sweetness, along with green tea aroma.

How Does Front Street Coffee Roast Kenyan Coffee Beans?

Preheat the roaster to 200°C and charge, set the airflow to 3, turn on the heat after 30S, adjust the heat to 160, keep the airflow unchanged, the turning point is at 1'34", maintain the heat, turn yellow at 5'30", the grassy smell disappears, entering the dehydration stage, reduce the heat to 130, lower the heat to enter the Maillard reaction, and at 178°C lower the heat again to extend the Maillard reaction time, open the airflow to 3.5. At 7'45" dehydration is complete, reduce the heat to 80. At 8'30" wrinkles and dark spots appear on the bean surface, and the toasted bread smell turns into coffee aroma, which is the prelude to first crack. At this time, pay attention and listen for the sound of first crack. First crack begins at 8'52", fully open the airflow to 5, reduce the heat to 50 to reduce the degree of caramelization. When first crack begins, heat absorption is stronger, so it is recommended to maintain heat at this stage to prevent stagnation. First crack development takes a relatively long time, which helps reduce acidity and develop flavor. After first crack, develop for 2 minutes 10 seconds and drop at 191.6°C.

Latin American Coffee-Producing Countries

Latin America refers to the Americas south of the United States, including Mexico (North America), Central America, the West Indies, and South America. Latin American coffee originated in the 18th century and is inseparable from the Spanish colonial rule at that time. Spanish is also the common language of most Latin American countries, while Brazil mainly uses Portuguese (due to past Portuguese colonial rule). Latin America's fertile volcanic soil, rainy and humid climate, and high altitude are very suitable for coffee cultivation. Latin American coffee generally uses washed processing and fermentation, and rigorous processing ensures better coffee bean quality, lower defect rates, and large, complete beans. The overall flavor of Latin American coffee is known for balance, usually with cocoa and dark chocolate-like rich flavors. Representative coffee-producing countries include Brazil, Colombia, Panama, and Costa Rica.

1. Brazil (Front Street Brazilian coffee flavor characteristics: low acidity, strong nutty notes, good body)

Brazil is the world's largest coffee producer and also the world's second-largest coffee consumer (the first being the United States). Although Brazil faces several times more natural disasters than other regions, its cultivable area is enough to compensate. In 2020, affected by the COVID-19 pandemic, Brazil delayed the progress of this year's coffee harvest, but some analyses say this year's export volume is expected to set a new record. (This information comes from a report by Coffee Financial Network.)

【Brazilian Coffee Bean Processing Methods】

Before 1990, Brazil almost entirely used the rough natural sun-dried processing method, which made Brazilian beans prone to acquiring a musty wood or earthy taste, because coffee cherries had to undergo two to three weeks of sun exposure, and if it rained and moisture returned, moldy flavors easily developed. To change this situation of relying entirely on the weather, in 1990 Brazil developed the Pulped Natural method to shorten processing time, taking advantage of Brazil's relatively dry climate. In the natural processing method, when removing the coffee skin and pulp, fully ripe pulp is easy to remove, while the skin of immature green cherries is not easy to remove, so a second screening can be carried out to filter out immature cherries and unify the ripeness of the coffee cherries. Compared with the natural method, Front Street believes that coffee beans selected and processed this way have improved cleanliness and maturity, bringing a more uniform-tasting coffee. The introduction of the pulped natural method does not mean all Brazilian production areas use it. In the lower-humidity Cerrado, natural processing still dominates, and pulped natural is instead a supporting method there. However, the Red Bourbon from the Cerrado region that Front Street purchased uses the pulped natural processing method.

【Brazilian Production Areas】

Brazil has 21 states, 17 of which produce coffee, but 7 states have the largest output, together accounting for 98% of the national total. They are:

São Paulo State (Mogiana, Centro-Oeste)

Paraná State (Norte Pionerio do Paraná)

Bahia State (Planaltoda Bahia, Cerrado da Bahia, Atlantico Baiano)

Espírito Santo State (Montanhas do Espírito Santo, Conilon Capixaba)

Minas Gerais State (Sul de Minas, Cerrado Mineiro, Chapada de Minas, Matas de Minas)

Rondônia State (Rondnia)

Rio de Janeiro State (Rio de Janeiro)

【Brazilian Coffee Bean Grades】

①Grading by defect rate: from high to low, seven levels No2-No8. The grade is distinguished by how many defective beans are present per 300g, using a deduction system. A deduction below 4 can be classified as No2 (No1, with not even one defective bean, is rare and cannot maintain a consistent supply).

②Grading by screen size: 17 screen and 18 screen are the highest grades.

③Cupping quality grading: from high to low, Fine Cup, Fine, Good Cup, Fair Cup, Poor Cup, Bad Cup. FC (Fine Cup) and GC (Good Cup) are more common.

④Flavor grading: from high to low, Strictly Soft, Soft, Softish, Hardish, Rioy (iodine-like harsh flavor).

Front Street Brazil Queen Estate Coffee Beans Region: Mogiana Altitude: 1400-1950m Variety: Yellow Bourbon Processing method: Natural Brewing flavor: Sweet bean character, clean. Using pulped natural makes its acidity slightly brighter while combining excellently with sweetness, and some even have tropical fruit aromas.

Front Street Coffee Roasting Suggestions for Queen Estate Coffee Beans Preheat to 200°C and charge, adjust the heat to 150, set the airflow to 3, the turning point is at 1'30", maintain the heat, turn yellow at 5'10", the grassy smell disappears, entering the dehydration stage, reduce the heat to 125, open the airflow to 3.5. At 8'20" dehydration is complete, wrinkles and dark spots appear on the bean surface, and the toasted bread smell turns into coffee aroma, which is the prelude to first crack. At 178°C reduce the heat to 80, and at this time pay attention and listen for the sound of first crack. First crack begins at 9'14", fully open the airflow to 5. After first crack, develop for 3'00" and drop at 201°C.

2. Colombia (Front Street Colombian coffee flavor characteristics: acidity and berry aroma, with caramel aroma and abundant sweetness)

Colombia is the world's third-largest coffee producer, located in the tropics, with a climate that varies by terrain. The southern part of the eastern plains and the Pacific coast have a tropical rainforest climate, the mountains at 1000-2000 meters have a subtropical climate, and the northwest has a tropical savanna climate. Rich terrain, low latitude, high altitude, and diverse microclimates give Colombia a place in the specialty coffee world. Through cupping, Front Street Coffee believes Colombian coffee has a full mouthfeel and relatively heavy body. It has nutty, chocolate, and caramel aromas and smooth, pleasant fruit acidity.

【Colombian Coffee Bean Processing Methods】

Colombian coffee beans mainly use the washed processing method. With the popularity of special processing methods and Colombian coffee beans' "openness to all comers," more and more special processing methods are being applied to Colombian coffee beans. In the washed processing method, coffee farmers first pour the harvested coffee cherries into a large water tank. Underdeveloped, inferior beans float to the surface, while ripe, full cherries sink to the bottom. At this point, the defective cherries floating on the surface are removed. Then the outer skin and pulp of the coffee cherries are removed with a pulper, and at this stage the coffee beans still have a slippery layer of mucilage attached.

The coffee beans with mucilage are placed into a fermentation tank for 16-36 hours, during which microorganisms break down the mucilage. After fermentation is complete, a large amount of clean water is used to remove the remaining mucilage from the coffee beans. Finally, the washed coffee beans are dried.

【Colombian Production Areas】

Colombian coffee-growing areas are divided into two parts. One part is located in central Colombia, mainly producing commercial coffee beans, with low altitude, around 1000m. This region is called MAM: M refers to Medellín, the capital of Antioquia Department; A refers to Armenia, the capital of Quindío; and the other M refers to Manizales, the capital of Caldas Department. Coffee beans produced in the central region have low acidity, full body, and good sweetness, somewhat close to the flavor of Indonesian Mandheling. The other part is located in south-central Colombia, where successive SCAA Coffee of the Year winners have come from. With many volcanoes, this is a specialty coffee-producing area full of hidden gems. This region includes Tolima, Cauca, Huila, and Nariño.

Front Street Colombia Huila Coffee Beans

Country: Colombia Region: Huila Altitude: 1500-1800 meters Variety: Caturra Processing method: Washed Brewing flavor: Nuts, dark chocolate, caramel, soft fruit acidity.

Front Street Coffee Roasting Suggestions for Huila Coffee Beans Yangjia 800N, charge amount: 480g. Charge when the roaster temperature reaches 180°C, set the airflow to 3, and the heat to 130; the turning point is at 1'42"; when the roaster temperature reaches 140°C, open the airflow to 4; when the roaster temperature reaches 150.6°C, the yellowing point is at 6'20". At this point the bean surface turns yellow, the grassy smell completely disappears, and the dehydration stage begins. At 180°C reduce the heat to 100, keeping the airflow unchanged. At 8'45", ugly wrinkles and dark spots appear on the bean surface, and the toasted bread smell clearly turns into coffee aroma, which can be defined as the prelude to first crack. At this time, listen carefully for the sound of first crack. First crack begins at 10'20", fully open the airflow. After first crack, develop for 1'50" and drop at 196°C.

3. Panama (Front Street Panamanian coffee flavor characteristics: represented by Geisha, with distinctive bright acidity)

Panamanian coffee is famous worldwide because of Geisha, and the reason is inseparable from Panama's unique natural geographical conditions and specialized fine management model. After Panama opened the canal at the end of the 20th century, many American elites went south, partly for work needs and partly to explore business opportunities. It was at this time that coffee developed by leaps and bounds, thus establishing Panama's position in specialty coffee. In 2004, Panama's Geisha coffee first showed its fragrance and achieved repeated successes, giving this country the name "birthplace of the world's finest Geisha coffee" and making it the new overlord of the specialty coffee world. Through cupping, Front Street Panama Geisha coffee shows rich floral aroma, citrus acidity, and a honey-like clean sweetness.

【Panamanian Coffee Bean Processing Methods】

When it comes to Panamanian coffee beans, most are of the Geisha variety. Geisha coffee beans are commonly processed using washed and natural methods. The washed method can bring out Geisha's most original floral and fruity acidity, while the natural method adds richness and sweetness on that basis.

【Panamanian Production Areas】

Panama has four main coffee-producing areas: Boquete, Volcan, Santa Clara, and Piedra de Candela. The Boquete production area includes well-known estates such as Hacienda La Esmeralda, Elida Estate, and Kotowa Estate.

Front Street Hacienda La Esmeralda Washed Green Label Coffee Beans

Region: Boquete, Panama Estate: Hacienda La Esmeralda Altitude: 1600-1800m Variety: Geisha Processing method: Washed Brewing flavor: Rich jasmine floral aroma, high sweetness, citrus, berries, juicy feel, cream, green tea, orange peel, cantaloupe. The overall flavor is layered and rich, with a lasting finish of floral aroma and citrus.

Front Street Coffee Roasting Suggestions for Green Label Geisha Coffee Beans Charge at 190°C, heat 150, set the airflow to 3; the turning point is at 1'36". When the roaster temperature is 140°C, open the airflow to 4 and reduce the heat to 130; when the roaster temperature is 150.8°C, the bean surface turns yellow, the grassy smell completely disappears, and the dehydration stage begins. When the roaster temperature reaches 166°C, adjust the heat to 110; keep the airflow unchanged; at 7'55", when at 176°C, adjust the heat to 90; ugly wrinkles and dark spots appear on the bean surface, and the toasted bread smell clearly turns into coffee aroma, which can be defined as the prelude to first crack. At this time, listen carefully for the sound of first crack. First crack begins at 8'30", open the airflow to 5, and at 187°C adjust the heat to 60; after first crack, develop for 1'30" and drop at 193.5°C.

4. Costa Rica (Front Street Costa Rican coffee flavor characteristics: chocolate aroma and nutty flavor, moderate sweet-and-sour balance, fragrant and rich)

Costa Rica was the first country in Central America to grow coffee and commercially promote it. Later, after Costa Rica broke free from Spanish colonial rule, the local government began to strongly support the coffee industry through a series of policies, promoting the development of private estates. Through cupping, Front Street Coffee found that the country's coffee drinks quite mild and smooth, with acidity, sweetness, and the bitter aroma of chocolate and nuts all compatible, and the overall flavor very balanced.

【Costa Rican Coffee Bean Processing Methods】

Costa Rican coffee beans mostly use the locally invented honey processing method. Front Street believes honey-processed coffee has a balance of acidity and sweetness, and because it undergoes sun drying like the natural method, the coffee beans' own aroma is also amplified, with a rich, full flavor. As honey processing technology matured, people improved it and created raisin honey processing, increasing the difficulty of the honey processing method, but the resulting coffee beans have a stronger fermented note and aroma, giving the coffee a white wine-like mouthfeel and balanced acidity.

【Costa Rican Production Areas】

Costa Rica has eight main coffee-producing areas: West Valley, Central Valley, Tarrazu, Tres Rios, Orosi, Brunca, Turrialba, and Guanacaste. Among them, Central Valley, Tarrazu, and Tres Rios are the most famous.

Front Street Costa Rica Baja Coffee Beans

Country: Costa Rica

Region: Tarrazu

Altitude: 1950m

Processing method: Raisin honey

Grade: Strictly Hard Bean SHB

Variety: Caturra Brewing flavor: Smells like the fermented aroma of rice wine, tastes with the sweet-and-sour feel of ripe tropical fruit and berries, nutty and creamy flavors, with caramel in the aftertaste and a faint floral aroma in the finish.

Front Street Roasting Suggestions for Baja Coffee Beans

Preheat to 180°C and charge, adjust the heat to 130, open the airflow to 3, the turning point is at 1'43", maintain the heat; at 140°C keep the heat unchanged and open the airflow to 4. At 6'15" turn yellow, the grassy smell disappears, entering the dehydration stage. At 151°C reduce the heat to 100, keep the airflow at 4. At 176°C adjust the heat to 70, keep the airflow unchanged. At 8'15" dehydration is complete, wrinkles and dark spots appear on the bean surface, and the toasted bread smell turns into coffee aroma, which is the prelude to first crack. At this time, pay attention and listen for the sound of first crack. First crack begins at 9'40", fully open the airflow to 5, keep the heat unchanged. After first crack, develop for 1'45" and drop at 196°C.

Asian Coffee Beans Asia's coffee bean output is second only to Latin America, with Vietnam being Asia's largest coffee-producing country. Through cupping, Front Street believes that Asian coffee has higher body than both Latin America and Africa, but its acidity is less elegant, with woody, herbal, and spicy notes. Its low, muted aroma profile is stronger than uplifting fruity acidity. Representative coffee-producing countries include Indonesia and Yunnan, China.

1. Indonesia (Front Street Indonesian coffee flavor characteristics: good body, herbal and agarwood-like notes)

Indonesia is located in Southeast Asia. Its coffee history can be traced back to 1696, when Dutch coffee farm owners tried to find broader coffee-growing land. After much exploration, they finally settled on Java Island in Indonesia. Over 30 years, Indonesia established a sufficient foundation in the coffee market. However, today Indonesia's coffee representative is Mandheling. This is actually not surprising, because from the beginning most of the Java coffee sold to Europe came from the Sumatra region, and Mandheling comes from Sumatra. So Sumatra can be said to be an important coffee-producing area in Indonesia.

【Indonesian Coffee Bean Processing Methods】

Mandheling mostly uses Sumatra's unique coffee bean processing method—wet hulling. Because the local weather is often rainy, with continuous typhoons, it cannot achieve the good weather required for natural sun drying. Moreover, the local economy is not strong, so it also cannot use the more expensive washed method. This gave rise to the highly local wet-hulling method. In the first stage, a wooden pulper removes the skin and pulp. After 3 hours of fermentation, the beans are dried until the moisture content drops to a semi-dry, semi-wet 30-50%. In the second stage, the mucilage and parchment layer are removed, and drying continues for the later stage. The drying process takes 2-4 days, and the moisture content drops to 12-13%.

In addition to the regular wet-hulled method, there is also an aged wet-hulled method. Coffee beans first undergo ordinary wet-hulling, then are sealed and stored in a warehouse for 2-3 years. The warehouse environment must be cool and ventilated, and the beans must be regularly turned to prevent mold and spoilage. During this period, the acidity of the coffee beans gradually weakens and turns into sugar, and the color becomes darker, mostly yellowish-brown or dark brown. Mandheling coffee beans using this processing method are also called Aged Mandheling coffee beans.

【Indonesian Sumatra Production Areas】

Famous coffee-producing areas in Sumatra include the Gayo Highlands (also known as the Aceh production area), Lintong, and Sidikalang. Common Mandheling comes from the Lintong production area, which best represents the flavor of regular Mandheling. The so-called premium Mandheling commonly seen on the market, namely Golden Mandheling, comes from the Lake Tawar production area (a micro-region of the Gayo Highlands production area).

Front Street Golden Mandheling Coffee Beans Region: Gayo Highlands, Aceh, Sumatra Altitude: 1100-1600 meters Variety: Ateng Grade: G1, 3 times hand-sorted Processing method: Wet-hulled Brewing flavor: Herbal, spicy, full-bodied and clean, highly balanced, rich nutty and caramel aroma, with chocolate notes and a lasting finish.

Front Street Coffee Roasting Suggestions for Golden Mandheling Coffee Beans Charge when the roaster temperature reaches 200°C, set the airflow to 3, adjust the heat to 160 after 1 minute, keep the airflow unchanged, roast until 5'40", temperature 148°C, the bean surface turns yellow, the grassy smell completely disappears, dehydration is complete, adjust the heat to 140°C, change the airflow to 4; at 9'40", ugly wrinkles and dark spots appear on the bean surface, and the toasted bread smell clearly turns into coffee aroma, which can be defined as the prelude to first crack. At this time, listen carefully for the sound of first crack. First crack begins at 9'54", reduce the heat to 60°C, fully open the airflow (adjusting the heat must be done very carefully, not so low that there is no cracking sound), and drop at 204.5°C.

2. Yunnan, China (Front Street Yunnan coffee flavor characteristics: melon and fruit aroma, nutty aroma, tea-like feel, full-bodied)

Yunnan has the earliest history of coffee cultivation in China. In 1892 (the 18th year of the Guangxu reign of the Qing Dynasty), French missionary Tian Deneng planted the first coffee tree in Zhukula Village, Binchuan, Dali, opening the prelude to coffee cultivation in mainland China. In recent years, through cupping different Yunnan coffee beans, Front Street believes they have a fresh melon and fruit aroma, bright plum acidity, brown sugar sweetness, nutty finish, obvious sweetness, rich aroma, and full-bodied mouthfeel. In Lujiangba, Baoshan, the dry-hot valley climate is very suitable for coffee cultivation, because with the Gaoligong Mountains behind it, coffee gardens can reach an altitude of 1500 meters. In 1952, Baoshan conducted its first trial planting, exactly half of China's century-long coffee history. In the early days, the village introduced fine Arabica varieties, mainly Typica and Bourbon.

【Yunnan, China Production Areas】

Coffee cultivation in Yunnan is mainly distributed in Lincang, Baoshan, Pu'er, and Dehong. These places have natural resources of low latitude, high altitude, and large temperature differences between day and night, making Yunnan a golden growing area for producing high-quality Arabica (small-bean) coffee. Because Yunnan did not initially divide regions well in coffee bean cultivation, this led to ambiguity in grading and screening.

【Yunnan Coffee Bean Processing Methods】

When Front Street visited Yunnan production areas during the growing season, it truly experienced what the rainy season means. It is sunny for a few minutes and rains for half an hour. Precisely because of the year-round rainy season and unstable climate, most Yunnan coffee beans use the washed processing method. The harvested cherries are pulped with a depulper to separate most of the pulp from the coffee beans, and then the parchment beans are guided into a clean water tank and soaked in water for fermentation to thoroughly remove the remaining pulp layer. In the past (about five years ago), the washed method was often the first choice for processing good coffee beans. Through water processing, immature beans and defective beans are selected out due to buoyancy, and the fermentation process is easier to control. Therefore, unlike natural beans, the flavor does not have off-notes, but instead shows obvious fruit acidity, slightly stronger complexity, and cleaner cup characteristics (without any negative flavors, such as astringency or sharpness).

Front Street 2013 Yunnan Red Cherry Typica Coffee Beans

Coffee origin: Lincang, Yunnan, China

Coffee variety: Typica

Production altitude: 1200M

Quality grade: AA

Processing method: Washed

Front Street Roasting Suggestions for Front Street 2013 Natural Typica Coffee Beans? Charge when the roaster temperature reaches 200°C, set the airflow to 3, adjust the heat to 160 after 1 minute, the turning point is at 1'32", roast until 5'40" turn yellow, temperature 149°C, the grassy smell completely disappears, dehydration is complete, keep the heat unchanged, change the airflow to 4; at the 6th minute, adjust the heat to 140, at the 7th minute, adjust the heat again to 120, at the 8th minute, ugly wrinkles and dark spots appear on the bean surface, and the toasted bread smell clearly turns into coffee aroma, which can be defined as the prelude to first crack. At this time, listen carefully for the sound of first crack. First crack begins at 8'37", adjust the heat to 90, fully open the airflow to 5, at the 9th minute reduce the heat to 20, develop after first crack for 2'00", and drop at 196°C.

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