Types of coffee beans explained
Coffee can be classified in different ways: by the type of coffee bean, by roast level, by origin, or by the way the drink is prepared. The most useful starting point is understanding the main types of coffee beans, because Arabica, Robusta, Liberica, and Excelsa each have their own flavor profile, growing conditions, and role in coffee culture.
The four main types of coffee beans are Arabica, Robusta, Liberica, and Excelsa.
The two types of coffee beans most people encounter are Arabica and Robusta, while Liberica and Excelsa are rarer and usually found in specific regions or specialty blends.
Arabica is generally associated with smoother, sweeter, and more aromatic coffees, while Robusta is stronger, more bitter, and higher in caffeine. This difference explains why Arabica is often used for specialty coffee and filter brews, while Robusta is commonly used in espresso blends to add body, intensity, and crema.
Still, the bean variety is only one part of the story. The final flavor also depends on where the coffee is grown, the altitude, the soil, the climate, the processing method, the roast level, and the brewing technique.
Coffee beans characteristics
Each coffee bean type has a different flavor profile, caffeine level, and role in coffee production:
● Arabica: smooth, aromatic, and naturally sweet, often with fruity, floral, chocolate, or nutty notes. It is the most popular choice for specialty coffee and works well for filter coffee, espresso, and milk-based drinks such as Dalgona coffee.
● Robusta: stronger, more bitter, and higher in caffeine than Arabica. It is often used in espresso blends because it adds body, intensity, and a thicker crema.
● Liberica: much rarer, with large, irregular beans and a distinctive woody, smoky, or slightly floral flavor. It is mainly grown in parts of Southeast Asia.
● Excelsa: generally classified as a variety of Liberica, but known for its tart, fruity notes. It is often used in blends to add complexity and depth.
The final taste of coffee also depends on origin, altitude, processing method, roast level, and brewing technique, so the bean type is only the starting point.
History of coffee tells us that a goatherd named Kaldi discovered coffee when he noticed his goats behaving energetically after eating red fruit from a bush. According to the tale, the cherries were eventually thrown into a fire, where the beans inside released a rich aroma. Whether or not the story is historically accurate, it reflects an essential truth: roasting is what transforms green coffee beans into the aromatic coffee we recognize.
Green coffee beans need heat to develop their flavor, aroma, color, and structure. During roasting, the beans increase in volume, lose moisture, become more brittle, and develop the complex notes that define the final cup.
There are four basic roast levels:
● Light roast: light brown beans with no visible oil, higher acidity, and more floral, fruity, or herbal notes. Often used for filter coffee.
● Medium roast: balanced acidity, sweetness, and aroma, with a rounder body and no surface oil. Suitable for both filter coffee and espresso.
● Medium-dark roast: deeper brown color, lower acidity, and notes of chocolate, nuts, and caramel. A small amount of oil may appear on the surface.
● Dark roast: very dark beans with visible oils, lower acidity, and a bold, bitter, smoky, or cocoa-like profile. Often chosen for espresso-style drinks.
No roast level is better than another, the best choice depends on taste preferences and brewing method. Some coffee drinkers prefer the brightness of a light roast, while others enjoy the body and intensity of a darker roast.
Popular types of coffee drinks
When people talk about types of coffee, they may also mean the drinks found on a café menu. The most popular include:
● Espresso: a short, concentrated coffee made under pressure. It is the base for many drinks.
● Americano: espresso diluted with hot water for a longer black coffee.
● Cappuccino: espresso with steamed milk and a thick layer of milk foam.
● Latte: espresso with more steamed milk and a thin layer of foam, creating a creamier and milder drink.
● Macchiato: espresso “marked” with a small amount of milk or foam.
● Flat white: espresso with velvety microfoam, usually stronger and silkier than a latte.
● Cold brew: coffee steeped in cold water for several hours, served chilled or over ice.
With De’Longhi coffee machines, coffee lovers can explore many of these styles at home, from espresso-based drinks to milk recipes and longer coffees. The right machine can make it easier to experiment with different beans, roast levels, and preparations while keeping the brewing process consistent.
The best type of coffee depends on how you like to drink it. If you enjoy black coffee with a clean and aromatic flavor, Arabica beans with a light or medium roast may be a good choice. If you prefer strong espresso, a medium-dark roast or an Arabica-Robusta blend can provide more body and crema.
For milk-based drinks, medium and medium-dark roasts often work well because their chocolate, nutty, or caramel notes pair naturally with milk. For cold coffee drinks, choose beans with enough intensity to remain flavorful after ice, water, or milk are added.
It is also worth exploring coffee by origin. Beans from Ethiopia may offer floral or fruity notes, Brazilian coffees are often nutty and chocolatey, while some Southeast Asian coffees can be bold, earthy, and full-bodied. The more you experiment, the easier it becomes to recognize the flavors you enjoy most.
What are the main types of coffee beans?
The main types of coffee beans are Arabica, Robusta, Liberica, and Excelsa. Arabica and Robusta are the most common, while Liberica and Excelsa are rarer and usually found in specific regions or specialty blends.
What are the two most common types of coffee beans?
The two most common types of coffee beans are Arabica and Robusta. Arabica is usually smoother and more aromatic, while Robusta is stronger, more bitter, and higher in caffeine.
Which type of coffee bean is best for espresso?
Espresso often works well with medium-dark roasts or blends that include Arabica and a small amount of Robusta. Arabica adds aroma and sweetness, while Robusta can increase body, intensity, and crema.
What is the difference between coffee beans and coffee roasts?
Coffee beans refer to the variety or species of coffee, such as Arabica or Robusta. Coffee roast refers to how long and how intensely the beans are roasted, which changes their flavor, aroma, acidity, and body.
