What makes the arabica bean different from Robusta and Liberica?

Arabica is one of three native coffee species, alongside Robusta and Liberica, and the term describes a bean rather than a drink style. Arabica trees grow at 1,000 to 2,000 meters, prefer 15-24°C, need at least 1,500 mm of annual rainfall, and account for roughly 60-70% of world coffee production, with Bourbon and Typica among their sub-varieties.

Robusta supplies about 30-40% of global production, while what is liberica is a large-bean species with only around 3% of output, mostly in the Asia-Pacific and largely out of the commercial market. Understanding these differences explains why origin and species shape flavor far more than a menu label such as 100% Arabica.

Walking into a café, you often see "100% Arabica" on the menu, but do you really understand this variety? In fact, Arabica is just one of the three native species of coffee beans, not a specific drink. This article will systematically sort out the origins, growing conditions, flavor profiles, and commercial value of the three major varieties—Arabica, Robusta, and Liberica—and guide you through the unique charm of Arabica and its core position in specialty coffee. At the same time, we'll also discuss the quality gap between 10-yuan and 30-yuan coffee, the true identity of Blue Mountain and Kopi Luwak, and how Front Street Coffee presents the origin personality of single-origin coffee.

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First, a little background. Nowadays, many coffee sellers are opening up new coffee beverage tracks, and quite a few use Arabica as a brand highlight, claiming to use "100% Arabica," and even directly writing in their promotions: freshly ground black coffee is made with 100% Arabica!

But what needs to be clarified is that Arabica is actually a variety of coffee bean, not a type of coffee drink.

Coffee varieties:

The three native species are Arabica, Robusta, and Liberica. Arabica ranks first in production, accounting for about 60–70% of the world's coffee, with sub-varieties such as Bourbon and Typica. Robusta accounts for about 30–40% of total world coffee production. Liberica accounts for only 3% of the total and is mostly grown in the Asia-Pacific region.

Liberia, also known as large-bean coffee, has extremely strong vitality, but at the same time its flavor and resistance to leaf rust are weak. Its cultivation amount is less than 1%, and it has basically withdrawn from the commercial market, preserved only in scientific research. Therefore, the focus of what we're discussing today is Arabica and Robusta.

Arabica

Also known as small-bean coffee, it originated in Ethiopia. Arabica coffee trees mostly grow at altitudes between 1,000 and 2,000 meters; they are relatively cold-tolerant, with a suitable growing temperature of 15–24°C; they need relatively high humidity, with annual rainfall of no less than 1,500 millimeters, and they also have high requirements for cultivation techniques. The Arabica coffee tree is a relatively large shrub, with oval, dark green leaves and oval fruit, generally containing two slightly flat beans, with an elongated oval front, a narrow and curved center crack in an S shape, and a relatively smooth rounded back. Caffeine content is about 0.8%–1.5%.

Arabica coffee's excellent flavor and aroma make it the only one of these native species that can be drunk directly and on its own. Jamaican Blue Mountain, Indonesian Mandheling, Yirgacheffe, and Brazilian coffee, among others, are all single-origin coffees. However, it has weak resistance to drought, frost damage, pests, and diseases, especially leaf rust, coffee's greatest natural enemy, so producing countries are all committed to improving varieties.

Arabica coffee produced in different regions, at different altitudes, and in different climates has its own characteristics and can display distinctly different personality flavors. When unroasted, it smells fresh and grassy; after proper roasting, it shows "fruity notes" (medium-light roast) and "caramel flavor" (dark roast). It is suitable for single origins and various blends and can be made using various extraction techniques.

Robusta

Also known as medium-bean coffee, it originated in Congo, Africa. Robusta coffee trees are mostly planted in lowlands at altitudes of 200–800 meters, prefer a warm climate, and require temperatures of 24–29°C; their rainfall requirements are not high. However, this variety relies on insects or wind for pollination, so it takes 9–11 months from pollination to fruiting, relatively longer than Arabica.

The Robusta coffee tree is a species between a shrub and a tall tree, with longer leaves and bright green color. The tree can reach up to 10 meters tall, but its roots are very shallow. The fruit is fuller than Arabica beans, with a vertical center line split. Viewed from the side, it is usually flat or raised in the middle, and it feels harder than Arabica beans, like small stones.

Robusta coffee flavor is generally inferior to Arabica.

| The value of Robusta

As a very important variety in the coffee world, Robusta has made indispensable contributions in the commercial world. Robusta's value is not as a negative example to set off how superior Arabica's flavor is; it has an unshakable position in espresso blends. Italian blends add a small amount of Robusta to increase the coffee's body and produce Espresso with richer crema.

After Espresso blends with milk, it presents a mellow and full mouthfeel. Because of the complementarity of Robusta and Arabica, milk coffee becomes richer and more aromatic; Robusta makes up for Arabica's body.

【Robusta】

Mainly used in espresso blends to increase body and obtain rich crema. Although Robusta's flavor cannot compare with Arabica's, it has its own value.

Beginner questions:

1 | What is the difference between 10-yuan and 30-yuan coffee?

From the coffee market perspective, coffee beans are mainly divided into two categories: commercial beans and specialty coffee beans. In terms of price, Robusta international futures are about US$1,686 per ton, which at today's exchange rate is about 11.5 RMB per kilogram. Specialty coffee beans are several times more expensive than commercial beans. From a cost perspective, choosing commercial beans naturally leaves a much larger profit margin, but the coffee obtained from commercial beans is far inferior in taste to specialty coffee beans. They can be used to make lattes, cappuccinos, and other espresso drinks.

Between commercial coffee and specialty coffee, 10 yuan and 30 yuan indeed mean a difference in quality. Simply put, specialty coffee beans are high-quality green beans, roasted with superb roasting skills, restoring the unique taste inherent in the coffee beans—a flavor that belongs only to that coffee bean. Specialty coffee beans are processed using refined methods. Careful washing and sun-drying, and various delicate green bean processing methods, give the coffee "layered," "fruity-acidic," "sweet," and "mellow" flavors.

Specialty coffee beans are several times more expensive than commercial beans. From a cost perspective, choosing commercial beans naturally leaves a much larger profit margin. Those large-scale, mass-produced and packaged beans are generally commercial beans.

In terms of the flavor of individual beans, commercial beans are generally chosen for blending. The price of this type of commercial coffee bean is generally relatively cheap; whether green coffee beans or roasting techniques, they can only be said to be produced according to a mass-production standard. The biggest difference between specialty coffee and commercial coffee beans lies in quality and price. A pound of specialty coffee beans may cost 90 yuan, while commercial beans may be as low as 40–50 yuan per pound.

However, in reality, blended beans can also make very good-tasting coffee; it mainly depends on what beans are used for the blend.

2 | "Blue Mountain coffee" and "Kopi Luwak" are coffees; Arabica is a coffee bean variety.

Most people have heard of "Blue Mountain coffee" and "Kopi Luwak." These are coffee drinks, while "Arabica" as "coffee" refers to a coffee variety.

◆ "Blue Mountain coffee" refers to coffee brewed from coffee beans produced in Jamaica's Blue Mountains.

◆ "Kopi Luwak" is made by extracting coffee beans from the feces of an animal called the civet, which eats coffee cherries and excretes the coffee beans intact, after which people collect and process them.

Therefore, the "Arabica" we often see now is actually classified by coffee bean variety as the standard.

Coffee bean varieties can mainly be divided into three types: Arabica, Robusta, and Liberica, and Arabica is further divided into Typica, Bourbon, Caturra, and so on.

In fact, not all coffee made from Arabica coffee beans is specialty coffee. Unfortunately, many people do not understand this, and many brands take the opportunity to use "100% Arabica coffee beans" as a gimmick, making consumers think their coffee is excellent.

In "relatively professional" cafés, when ordering single-origin coffee, you will hardly see promotions like "Arabica coffee beans." For example, at Front Street Coffee, what you see are words like "Kenya," "Colombia," and "Yirgacheffe." Tasting "single-origin coffee" allows you to understand the characteristics and flavors of coffee from a certain country or region.

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