Kilimanjaro coffee comes from the northern highlands of Tanzania and is one of the most recognizable African specialty coffees. After multiple roasting adjustments and cupping validations, Front Street Coffee ultimately positioned it as a medium-light roast, presenting through pour-over a flavor profile where citrus, berry, and honey sweetness intertwine. This article will provide a complete analysis of the origin and quality characteristics of this coffee, from producing region background, cultivated varieties, washed processing, grading system, roasting curve to brewing parameters, while also introducing varieties such as Bourbon, Typica, and Kent, as well as the unique microclimate and soil conditions of the Kilimanjaro volcanic region.

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Today Front Street Coffee (FrontStreet Coffee) is going to introduce this coffee bean from the Kilimanjaro region in northern Tanzania, Africa.

Front Street Coffee (FrontStreet Coffee) conducted several different roasting adjustments on this Kilimanjaro coffee bean and ultimately determined its roasting parameters. Through pour-over brewing, it was found that the Kilimanjaro coffee bean has pronounced fruity acidity, but not as intense as Kenya's, leaning more toward citrus and berry notes, with abundant sweet-and-tart balance—it is an African coffee bean with a distinctive regional flavor.

This is the necessary process Front Street Coffee (FrontStreet Coffee) goes through every time it receives a new coffee bean. Roasting not only tests the roaster's understanding of the bean's producing region, but also requires cupping, pour-over, and other tasting steps to determine whether the roasting curve is appropriate. So Front Street Coffee (FrontStreet Coffee) often experiences this phenomenon where a single cup of coffee involves multiple items to evaluate. Although it takes time, Front Street Coffee (FrontStreet Coffee) believes it is necessary—without going through a process of repeated trials, Front Street Coffee (FrontStreet Coffee) will not easily put a coffee bean on the shelf.

Front Street Coffee (FrontStreet Coffee) — Tanzania Kilimanjaro Coffee

Producing Region: Northern Highlands, Kilimanjaro Volcanic Region

Variety: Bourbon

Processing Method: Washed

Grade: AA

Altitude: 1300-2000m

Tanzania

In Tanzania, coffee is called kahawa. Tanzania is a typical East African country, bordered by Kenya and Uganda to the north, Malawi, Mozambique, and Zambia to the south, and Rwanda and Burundi to the west. The coffee history here is actually quite long, with coffee cultivation covering approximately 250,000 hectares.

When mentioning Tanzanian coffee, many coffee professionals first think of Kilimanjaro coffee. That's right—this is a unique "Kilimanjaro taste," with a full-bodied texture, moderate acidity, and rich aroma, earning it the reputation of "coffee gentleman."

When Front Street Coffee (FrontStreet Coffee) compares Tanzanian coffee with its neighbor Kenya, Tanzanian coffee has less bright acidity, showing more of a soft and gentle beauty, with more sweet fragrance. Its rich red wine character is also a characteristic of Tanzania.

Although not as famous as Kenyan beans, its annual output is almost equal to Kenya's, reaching 50,000 tons per year. The earliest Arabica seeds were introduced from Reunion Island (French territory), planted in the Bayamoyo and Mogoro producing regions. In 1893, the beans planted on the slopes of Kilimanjaro became the most successful coffee beans. Other varieties were successively introduced from neighboring Burundi in the 1950s and planted in western Tanzania. Currently, they are mainly grown in high-altitude areas, accounting for 75%, while local wild coffee continues to appear.

Unlike most African producing countries, Tanzania's coffee bags are not the common jute bags, but rough fiber bags made from agave leaves. This is because the local government, in order to protect Tanzania's sisal industry, prohibits the use of jute bags.

Cultivated Varieties

The most commonly cultivated coffee varieties in Tanzania are Bourbon, Typica, and Kent.

Bourbon

Bourbon is also a natural mutation originally from Yemen. Its name comes from its original planting location, Bourbon Island, which is now Reunion Island. During the French colonial period, the French often exported this coffee overseas, especially to the United States. Bourbon coffee cherries are short and round, with high density in the pulp and seeds. Bourbon coffee typically has high sweetness and bright acidity. Bourbon coffee yields 20-30% more than Typica, but is still considered a low-yield bean variety and is equally susceptible to leaf rust disease.

When we generally speak of Bourbon, we mostly refer to Red Bourbon. Because after Red Bourbon coffee trees flower and bear fruit, the color change of the coffee cherries goes from: green > turning slightly yellow > turning slightly orange > turning ripe red > then turning darker red as it matures further. Therefore, some also say that Red Bourbon planted at high altitudes typically has better aroma, while the acidity is brighter, with a flavor even reminiscent of red wine when drinking. Front Street Coffee (FrontStreet Coffee)'s Tanzania Kilimanjaro variety is precisely Bourbon.

Typica

Its flavor performance is excellent, recognized as a specialty coffee variety, but its yield is extremely low and it is susceptible to leaf rust disease, requiring more manpower for management. Typica coffee originated in Ethiopia and southeastern Sudan, and is the most widely cultivated coffee variety in the Western Hemisphere. The plant is relatively robust but not tolerant of sunlight. The top leaves of Typica are copper-red in color, hence it is called Red Top coffee.

Kent

A Typica hybrid variety discovered in 1911 at the Kent coffee estate in the Mysore region of India. It was crossbred from S288 and Typica, possessing high yield and rust resistance. Its coffee aroma is more full-bodied than Bourbon, and it has been introduced to new world producing countries such as Kenya and Indonesia, making outstanding contributions.

Kilimanjaro Volcanic Region

Tanzania's Mount Kilimanjaro reaches an altitude of 5,895 meters and is connected to Mount Meru. The coffee here grows at altitudes of 1,150 to 1,500 meters, making it Tanzania's largest coffee producing region and an important lifeline of Tanzania's economy. Mount Kilimanjaro is the highest peak on the African continent and the only snow-capped peak on Earth located on the equator. The fertile volcanic ash endows the coffee here with a full-bodied texture and soft acidity, possessing the typical characteristics of African coffee beans.

The northern Tanzanian coffee producing regions are the Moshi, Mbeya, and other producing areas around the Kilimanjaro foothills highlands, while to the south, the Songea-Ruvuma area through which the Ruvuma River flows is predominant.

ARUSHA

Arusha is adjacent to the producing region around Mount Kilimanjaro. This area surrounds the active Meru volcano, which has been dormant since 1910.

Altitude: 1100–1800 meters

Harvest Period: July–December

Varieties: Kent, Bourbon, Typica

Ruvuma

This region is located in the southernmost part of Tanzania, and its name comes from the Ruvuma River. Coffee is planted in the Mbingo area and is considered a potential producing region capable of producing high-quality coffee. In the past, insufficient funding hindered its development.

Altitude: 1200–1800 meters

Harvest Period: June–October

Varieties: Kent, Bourbon, N5 and N39 derived from Bourbon

KNCU&TCMB

In the past, Tanzania's coffee industry was always dominated by estate cultivation, but now over 85% is grown by smallholder farmers. Many smallholder farmers have formed cooperative organizations, the most important of which is the Kilimanjaro Cooperative Union (KNCU). Tanzanian coffee is sold by auction through the Tanzanian Coffee Marketing Board (TCMB) to private exporters. In the 1980s, most of Tanzania's coffee sales shifted from auction to direct sales to the Tanzanian coffee marketing board. Now this situation has changed somewhat, and the coffee industry is undergoing reform so that in the future individuals or groups will be allowed to purchase coffee. At that time, coffee will also need to be graded in different ways to attract buyers from Germany, Finland, Belgium, and Japan.

Washed Processing Method

Front Street Coffee (FrontStreet Coffee)'s Tanzania Kilimanjaro uses washed processing. Tanzanian coffee mostly adopts the washed method. After picking, coffee farmers send the coffee cherries to the nearest processing plant for processing. The washed method is currently the most widely used processing method, using washing and fermentation to remove the skin, pulp, and mucilage.

Steps of the washed processing method:

1. Screen out and remove impurities mixed in with the coffee cherries 2. Remove the coffee pulp and outer skin 3. Send into fermentation tanks, where fermentation removes the pectin layer adhering to the parchment layer 4. After cleaning thoroughly, proceed with drying

Grading System

Tanzania's coffee grading method is the same as Kenya's, both grading by coffee bean size. During screening, green coffee beans are passed through screens with fixed-size holes. The larger the screen number, the larger the green coffee bean particle size.

AA Grade: Screen Size between 17–18 (7.20mm screen)

AB Grade: Screen Size between 15–16 (6.8mm–6.2mm screen),

PB Grade: Round green beans, accounting for about 10% of all coffee beans

C Grade: Screen Size between 12–14 (4.8mm–5.6mm screen)

Roasting Curve

Kilimanjaro coffee consists of large, uniformly sized coffee beans with a grayish-green color, possessing relatively strong acidity and sweet aroma with excellent flavor. Front Street Coffee (FrontStreet Coffee)'s roaster chose a medium-light roast, which after roasting gives off sweetness and a light acidity.

Charge temperature: 170°C, turning point: 6'30'', 150.8°C, first crack: 10'16'', 182.7°C, first crack development 1'45'', dropped at 193°C.

Brewing Parameters

Dripper: V60

Coffee-to-water ratio: 1:15

Water temperature: 91°C

Grind size: BG#5G

Brewing Method

Front Street Coffee (FrontStreet Coffee) adopts segmented extraction, which is three-stage pouring.

First Pour: Blooming (to help release gases)

During the roasting process from green beans to roasted beans, coffee beans undergo a series of chemical reactions and physical changes. After reaching a certain degree of roasting, a large amount of gas (mostly carbon dioxide) accumulates inside the coffee beans.

Generally speaking, the fresher the coffee and the closer to the roasting date, the more bubbles typically appear during blooming. Dark-roasted beans also release more gas during blooming than light-roasted beans. Front Street Coffee (FrontStreet Coffee)'s coffee beans are all freshly roasted, so customers are generally advised to rest the beans for three days first, allowing the coffee beans to release carbon dioxide first, which in brewing can avoid problems of instability and under-extraction.

After the bloom releases gases, the coffee particles can absorb water evenly, allowing for even extraction later. A good bloom can rapidly and fully allow the coffee grounds to degas evenly while also allowing the coffee grounds to fully and quickly contact water, helping the coffee grounds to be evenly extracted.

Second Pour

The second pour starts from the center, injecting a small stream of water into the bottom of the coffee bed. In order for the water stream's penetrating force to be concentrated, the circular movement range should be small—about the size of a coin—and then expand outward. From the start of the second pour, pay attention to the water volume, trying not to exceed the height of the coffee bed. That is to say, when the water stream circles to near the filter paper, you can stop pouring.

Third Pour

As the thicker coffee bed near the filter paper edge becomes heavier from absorbing water, it slides down and becomes thinner as the water level drops. When the water level drops to halfway, you can proceed with the third pour. From the start of the third pour, observe the rate of water level drop. Similarly, start pouring from the center in circles, with water volume not exceeding the coffee bed height. At this point, you will also observe that the foam ratio has covered the entire surface. The third pour should increase the tumbling of coffee particles, allowing all settled particles to tumble, thereby dissolving soluble substances.

Tumbling particles will begin to settle when water is stopped. At this point, you rely on the flow rate caused by the dropping water level to create friction among the coffee particles. So once water is stopped, the coffee particles sink downward, causing blockage. Therefore, pay special attention to the rhythm of pouring. If you stop pouring too many times, it's equivalent to letting the coffee particles soak in water continuously, which will cause astringency and off-flavors in the final stage of coffee extraction.

Flavor Description

Berry aroma, citrus acidity on the palate, soft and refreshing acidity, honey sweetness in the mid-palate, tea-like finish, with a sweet aftertaste.

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