Which Arabica Coffee Varieties Matter in Pour-Over?

Arabica accounts for roughly 70% of global coffee production and supplies most specialty coffee bars. Under the species sit many sub-varieties with distinct traits. Typica is the oldest, spreading from Ethiopia; Bourbon mutated from Typica, Caturra is a mutation of Bourbon, and Catuai is a hybrid of Caturra and Mundo Novo. All of these belong to the Arabica species.

Arabica, also called small-seed coffee, yields less per hectare but delivers strong flavor, which is why it dominates commercial cultivation. It grows well above 800 meters, and lots grown above 1,200 meters usually show their full flavor potential. Typica and Bourbon have the longest cultivation history. Robusta goes mostly into instant coffee, and Liberica is rare on the market.

Global coffee varieties are mainly divided into three major categories: Arabica, Robusta, and Liberica. Among them, Arabica, with its excellent flavor, accounts for about 70% of total production and is also the main bean type used in specialty coffee shops. Front Street Coffee's offerings are basically all made with Arabica beans. Arabica has numerous sub-varieties, each with its own characteristics, such as Typica, Bourbon, Caturra, and Catuai. This article will systematically review the origins, morphological characteristics, cultivation performance, and flavor trends of these common varieties, while briefly introducing the current status of Robusta and Liberica, to help coffee enthusiasts more clearly understand the selection logic and flavor differences of pour-over single-origin coffee beans.

The coffee family has a considerable number of varieties, but ultimately they can be grouped into three native species: Arabica, Robusta, and Liberica. In the specialty coffee field, the vast majority of beans used in shops belong to Arabica, and FrontStreet Coffee's offerings are likewise mainly Arabica beans.

In terms of global production, Arabica accounts for about 70% of the total. Its oldest variety is Typica, which gradually spread from Ethiopia to the rest of the world. Robusta is mostly used in instant coffee production, while Liberica is extremely rare on the market. Therefore, today Front Street will focus on Arabica. It should be noted that Arabica is a broad classification concept, and there are many subdivided varieties under it. Typica is one of these varieties, Bourbon mutated from Typica, Caturra is a mutation of Bourbon, and Catuai is a hybrid offspring of Caturra and Mundo Novo. All of these belong to the Arabica species.

Arabica coffee beans are also called small-seed coffee beans. Although yield per unit area is relatively low, thanks to their excellent flavor performance, they have been widely promoted in commercial cultivation and currently account for about 70% of global coffee production. This type of coffee is suitable for planting at altitudes above 800 meters, and usually only Arabica beans grown above 1,200 meters can show their excellent flavor potential. At present, the Arabica varieties with the longest cultivation history are Typica and Bourbon.

First, let's look at Typica. The beans of this variety are mostly oval, slender, flat yet plump, with a rather neat appearance. Its flavor is elegant, but the plant is relatively weak, has poor disease resistance, is prone to coffee leaf rust, and does not produce high yields. Typica's most notable feature is that its young leaves are brownish-red, so it is also called "copper-top coffee." Today, representative examples of pure Typica include Blue Mountain coffee and Yunnan Typica.

The second is an ancient mutation of Typica—Bourbon. What is usually called Bourbon refers to Red Bourbon, whose fruit turns wine-red when ripe. Bourbon is suitable for planting in high-altitude areas because high altitude helps form rich aroma and bright acidity, mixed with a flavor reminiscent of red wine.

In 1930, a Yellow Bourbon variety was discovered in Brazil. Front Street has learned that Yellow Bourbon may have originated from Red Bourbon and a yellow-fruited Typica mutant. However, experiments have shown that Yellow Bourbon has low yield and is not resistant to wind and rain, which is also the main reason it has not been widely planted within the Arabica species. For example, the Yellow Bourbon from FrontStreet Coffee's Brazil Queen Estate has a flavor with fruity sweetness and distinct nutty notes.

By crossing Yellow Bourbon with Red Bourbon, another new Bourbon variety was developed, with beautiful pink fruit, called Pink Bourbon. Its fruit color is determined by a recessive gene in the pollen grains. According to Front Street, Pink Bourbon was first planted in the Huila region of Colombia, and the rich flavors it displayed during cupping made it famous. As Pink Bourbon became popular, Front Street also launched a Pink Bourbon from the Huila region called Isabella Coffee, with flavors of citrus, berries, and cherry tomatoes on the palate.

Another common Arabica variety is Caturra. Compared with Bourbon, Caturra has a shorter tree, making harvesting easier, has strong adaptability, and most importantly does not require shade trees, so it is often called sun-exposed coffee. At present, Caturra is widely planted in Colombia. Its mouthfeel is very smooth, with berry-like acidity, which also earned Colombian coffee the title of "gentleman among coffees."

The third to introduce is Catuai, a hybrid of Caturra and Mundo Novo. Compared with Caturra, Catuai is smaller in size, has better acidity, and also has extremely high yield and very strong disease resistance. Its cultivation range is also wide, with plantings in Brazil, Costa Rica, and other places. The Honduras Sweet Orange Estate and the Panama Butterfly 30% non-Geisha variety offered by Front Street belong to the Catuai variety.

Now let's talk about Robusta, one of the three major varieties. It has extremely strong adaptability and can grow under extreme weather conditions. Robusta is widely planted in Vietnam, Brazil, India, and other countries. It is also grown in Hainan, China, but is not well known.

Robusta coffee

The main reason Robusta is not widely used in specialty coffee is its insufficient aroma and sometimes earthy taste, which is a major taboo for specialty coffee, so it is usually used in blended beans or instant coffee. However, Front Street has learned that Robusta's flavor is not absolutely bad. The emergence of India's Coffee Royal Premium Robusta broke people's stereotypes about Robusta. Royal-grade Robusta has an unexpectedly clean flavor, without the expected earthy taste. Instead, it has a thicker, steadier mouthfeel, with faint notes of peanut, hazelnut, and wheat.

Liberica is usually called large-seed coffee beans. It has strong vitality, but its flavor and disease resistance are both weaker compared with the three major native species. Today it has basically withdrawn from the market, with preservation only in scientific research institutions.

At present, various Arabica coffee varieties are widely planted around the world and are also recognized as the highest-quality coffee beans. Front Street believes that the continuous expansion of Arabica cultivation shows that everyone's requirements for coffee bean quality are increasing, and more and more attention is being paid to coffee quality. This is a very good phenomenon for the specialty coffee industry.

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