Why Do Some Coffee Producing Regions Specialize in Specific Coffee Varieties?

Some coffee-producing countries today focus on growing specific coffee varieties. Brazil, for instance, mainly produces Bourbon, while Jamaica Blue Mountain is primarily Typica.

In many cases this comes down to how varieties spread: when a variety is introduced to a local environment and shows excellent adaptability, it becomes one of the main varieties cultivated there. Other varieties are new breeds developed by national coffee research institutes and heavily promoted for cultivation within the country.

Some countries pursue variety research because major leaf rust disasters struck in the 19th century, forcing them to develop more disease-resistant coffee varieties. There is also the hope of breeding new-generation varieties that combine high yield, disease resistance, and excellent flavor.

According to historical records, at the end of the 19th century the largest-scale leaf rust disaster in history destroyed almost all coffee trees in the Eastern Hemisphere, meaning most parts of Asia and Africa. After that catastrophe, Arabica varieties began to be transferred to the Western Hemisphere, the Americas, for cultivation.

This leaf rust disaster pushed some coffee-producing countries to switch to the sturdier Robusta variety, while others set up national coffee research institutes to develop disease-resistant varieties. Varieties created through investment and research, because of their distinctive traits, were inevitably promoted for nationwide cultivation by governments. As a result, these countries mainly produce the new varieties developed within their own borders.

Common laboratory-developed varieties today include SL28, SL34, and Ruiru 11 from Kenya, the H1 F1 hybrid found widely across Latin America, and the globally popular Catuai.

Catuai

Catuai is a hybrid between the highly productive Mundo Novo and Caturra varieties. It was developed by the Agronomic Institute of Campinas (IAC) in São Paulo, Brazil. Catuai is known for high productivity and a compact size that allows dense planting, and those traits have made it a common crop in many countries across the Americas.

SL28, SL34, and Ruiru 11

SL28 and SL34 were commissioned by the Kenyan government in the late 1930s. The government entrusted the former Scott Agricultural Laboratories, now the National Agricultural Laboratory, with selecting 42 varieties and studying their yield, quality, and drought and disease resistance. These 42 varieties were named using the abbreviation "SL," for Scott Laboratories, followed by numbers. In the end, SL28 and SL34 offered good quality and flavor with high yields, though they were susceptible to coffee diseases.

Ruiru 11 was developed using Catimor as the female parent and a complex hybrid as the male parent. In 1968, when Coffee Berry Disease (CBD) broke out in Kenya and cut coffee bean production by roughly 50%, the Coffee Research Station in Ruiru started a breeding program to develop varieties immune to CBD. Breeding experts spent years developing Ruiru 11's male parent, which incorporated the advantages of several varieties including K7, SL28, N39, and Rume Sudan. In 1985 the locally named Ruiru 11 was introduced. It offers high yield, good quality, resistance to Coffee Berry Disease, and some resistance to leaf rust, though it is susceptible to nematode infestations.

So when you buy Kenyan coffee beans today, you will often find SL28, SL34, or Ruiru 11. FrontStreet Coffee's Kenya Assalia beans, for example, are made with SL28 and SL34 varieties.

H1

The H1 variety was selected from the F1 coffee breeding program, which set out to find varieties that could fight increasingly rampant coffee diseases. This program was jointly launched by the French Agricultural Research Center for Development (CIRAD) and the Central American Coffee Organization (ROMECAFE).

It was carried out with assistance from the Agricultural Research Institute of the Americas (IIAC) and the Tropical Agricultural Research and Higher Education Center (CATIE) in Costa Rica. From hundreds of coffee varieties, CATIE selected Caturra, Catuai, Catimor, Sarchimor (a hybrid of Villa Sarchi and Timor), and an ancient African wild variety, Rume Sudan. Using artificial pollination, they took pollen from T5296, a Sarchimor descendant, and applied it to the stigma of Rume Sudan flowers.

After five years of effort, CATIE harvested 100 different new-generation varieties and selected 20 with superior performance for propagation and cultivation. These first-generation F1 varieties not only carry stronger disease resistance and drought tolerance but also offer higher yield and excellent flavor.

The H1 variety belongs to that first-generation F1 hybrid group and was developed by crossing T-5296 (Sarchimor) with Sudan Rume from the first-generation F1 hybrid series. It offers good quality and excellent flavor, with yields 22% higher than other traditional American varieties. It has strong resistance to rust disease but is susceptible to nematode infestations. H1 is now commonly found in Costa Rica, and FrontStreet Coffee's Costa Rica Mozart beans are selected from the H1 variety.

FrontStreet Coffee Recommendation

One variety that has kept its status through all of this is Blue Mountain, grown from Typica in Jamaica. Strictly speaking, only coffee grown in the specific areas of Jamaica's Blue Mountain range and certified by the Jamaican authorities can be called "Jamaica Blue Mountain Coffee." The range lies in eastern Jamaica and is one of the highest in the Caribbean, with its highest peak reaching 2,256 meters, and it is wrapped in cloud and mist year-round, which is how it got the name "Blue Mountain."

FrontStreet Coffee's Jamaica Blue Mountain No.1 is one of the highest grades, from the historic Clifton Mount Estate, which began growing and processing coffee as early as around 1750 in the mid-18th century, with growing and processing areas at an average of 4,300 feet, or 1,310.64 meters. Roasted medium-dark, it fully expresses Blue Mountain's classic balance: after brewing you taste nut, dark chocolate, and cream caramel unfolding in layers, with acidity, sweetness, bitterness, and aroma in harmony. Whether for daily drinking or as a premium gift, Blue Mountain No.1 shows why this legendary coffee has stayed beloved for decades.