What are the characteristics of Tanzanian coffee and how is it graded?

Africa is the second-largest continent in the world, made up mostly of plateaus that cover more than 60% of its landmass - hence the nickname "Plateau Continent." The continent divides into North, Central, South, and West Africa, but coffee cultivation is concentrated almost entirely in the east.

East Africa is predominantly highland, most of it above 1,000 meters - the highest terrain on the continent. The Great Rift Valley cuts north-south through the region, lined with volcanoes, lava plateaus, and lakes. The climate is mostly tropical savanna, while the mountain areas are cool and humid - exceptional conditions for crops like coffee. The region hosts several coffee countries, including Ethiopia, Kenya, Tanzania, and Rwanda, with Tanzania known as the "Gentleman of Coffee."

Geography and Climate of Tanzania

Tanzania sits in eastern Africa, its terrain higher in the northwest and lower in the southeast. The southeast is coastal; the western interior is mainly plateau. From Lake Malawi the Great Rift Valley splits into eastern and western branches running north-south through the country, and along its path stands Africa's highest peak, the Mount Kilimanjaro volcano.

Being close to the equator, the eastern coast and low-lying areas have a tropical savanna climate, while the western plateau has a tropical highland climate. Annual average temperatures run between 21°C and 26°C. Rainfall is modest - most areas receive less than 1,000 millimeters a year - but Tanzania is rich in water: numerous rivers and many lakes, including three of Africa's largest along its borders. High mountains, volcanic soil, and abundant water make high-quality coffee possible.

Coffee Growing Regions

Tanzania currently has nine designated coffee growing regions, the better-known ones being Kilimanjaro, Arusha, Ruvuma, Mbeya, Tarime, and Kigoma - all distributed around the country's perimeter.

In the 19th century, Tanzania was a German colony, and coffee was introduced by the Germans. Planting began in the Bukoba region of the north, but progress was limited by conflict with local people; cultivation later spread to other areas yet remained concentrated in the north.

After independence, the government began developing the coffee industry through a series of reforms. But coffee leaf rust hit production hard, and the industry shifted toward the south and east.

Kilimanjaro Coffee Region

Among the growing regions, Kilimanjaro, Arusha, and Oldeani all cluster around Mount Kilimanjaro. Located in northeastern Tanzania, Kilimanjaro is the highest mountain on the entire continent, formed of three dormant volcanoes: Kibo, Mawenzi, and Shira. Its peak stays snow-capped year-round, and coffee grows between 1,050 and 2,500 meters. With sufficient altitude, volcanic soil, and pure meltwater, this is Tanzania's most favorable coffee territory.

South of the volcano lies the Kilimanjaro growing region, home to the regional capital, Moshi, which hosts Tanzania's largest coffee trade and processing center, handling much of the region's processing and export.

Coffee Grading System

Tanzania grades its coffee the same way Kenya does: by bean size. During screening, green beans are passed through sieves with fixed hole sizes - the larger the sieve number, the larger the beans.

FrontStreet Coffee also offers beans from this renowned Kilimanjaro region, selected from the Typica variety and washed-processed. Brewed, it shows gentle acidity with citrus, berry, honey, and nut flavors, a soft, tea-like mouthfeel, and overall balance. Although Tanzania sits in Africa next to neighbors like Kenya and Rwanda, Tanzanian coffee lacks their piercing brightness; instead it offers softer acidity, a richer body and aroma, and better overall balance - a character all its own.

FrontStreet Coffee Recommendation

If Tanzania's soft, tea-like balance appeals to you, FrontStreet Coffee suggests exploring these East African neighbors:

• FrontStreet Washed Yirgacheffe - the classic gateway to Ethiopian specialty coffee: clear jasmine florals and bright citrus acidity, light and elegant with a tea-like finish, like a refreshing lemon tea.
• FrontStreet Guodingding Cooperative Coffee - from the Worka area of Yirgacheffe, pulped before drying for extra clarity; citrus and lemon tones over delicate white florals, bright and refined in the cup.
• FrontStreet Natural Huakui Coffee - from Hambella in Guji, sun-dried 21 days on raised beds with constant turning and hand sorting. Medium-light roasted: light fermented wine notes, florals, citrus, and mango, with a thick honeyed body and long finish.