What You Need to Know About Coffee Trees

If you’ve ever sipped a cup of coffee and wondered where those beans actually come from, you’re not alone. Most people never think about the tree, the fruit, or the long journey that turns a red cherry into your morning brew. But understanding coffee’s botanical roots helps explain why coffee tastes the way it does—and why some beans cost more than others.

Coffee comes from the seeds inside bright red fruits called coffee cherries, which grow on woody, tropical evergreen trees. The part we roast and brew is technically the seed, not a true bean. There are just a few key species responsible for nearly all the world’s specialty coffee, and each behaves differently depending on climate, elevation, and processing.

The Origins and Anatomy of the Coffee Tree

Coffee trees originated in Ethiopia, Africa. Botanically, they belong to the genus Coffea in the Rubiaceae (madder) family. Though commonly called “beans,” the seeds we use are actually the pits of coffee cherries—small fruits that grow on these evergreen shrubs or small trees, which can reach up to 10 meters in the wild but are usually pruned to 2–4 meters on farms. A mature coffee tree may take three to four years to bear fruit, remains productive for 20–25 years, and in rare cases can still produce coffee beyond 100 years.

The trees feature opposite, horizontal or drooping branches with leaves growing in pairs along short branchlets. The most widely cultivated coffee species are Arabica and Robusta. Arabica leaves are about 15 cm long, while Robusta leaves are longer, soft-oval or pointed, and a brighter green.

How Coffee Cherries Grow and Ripen

Coffee trees typically flower for the first time around three years of age. The blossoms are small, white, five-petaled, tubular flowers with a light jasmine-like scent, growing in dense clusters. Within two or three days, the flowers fall off, and several months later, the coffee cherries begin to form.

The coffee cherry is a drupe about 1.5 cm in diameter. It starts out green, turns yellow, and ripens to a bright red—similar to a cherry—hence the name “coffee cherry.” This is the point at which the fruit is ready to be picked. Each cherry normally contains two seeds (coffee beans) that sit facing each other, flat sides touching. Each bean is coated with a thin membrane called the silverskin, covered by a yellowish layer known as the parchment or endocarp, all surrounded by a sticky, sweet pulp.

The Three Main Coffee Species

The world’s coffee supply relies on three main species: Arabica, Robusta, and Liberica. Of these, Arabica and Robusta dominate the market, with Arabica accounting for roughly 70% of global production. Renowned coffees like Blue Mountain and Mocha are almost exclusively Arabica. Robusta originates from the Congo region in Africa and makes up approximately 20–30% of the world’s coffee. It is hardier and often used in espresso blends for its strong crema and higher caffeine content, but is less favored in specialty coffee for its harsher profile.

How Coffee Beans Are Processed From Cherries

Coffee beans are the seeds inside the coffee cherry. To extract them, farmers use one of two main methods. The simplest is non-washed or natural drying, where cherries are spread out in the sun until the outer skin cracks and the beans can be removed. This method is climate-dependent and more prone to defects, sometimes resulting in earthy or funky flavors and shorter shelf life.

The more common and higher-quality method is washed or wet processing. In this approach, harvested cherries are first soaked in water tanks for 24–28 hours. Only ripe cherries sink, allowing for initial quality sorting. Then a depulper removes the skin and fruit, leaving the beans encased in mucilage. These beans are fermented in tanks for half a day to a full day, which breaks down the remaining fruit residue. After fermentation, the beans are rinsed and sun-dried before a hulling machine removes the parchment layer, revealing the green coffee bean.

This washed method produces cleaner, more consistent beans with fewer defects and allows for better selection of ripe fruit, making it the preferred choice for specialty-grade coffee.

From Green Bean to Brew: The Role of Roast

Early coffee drinkers chewed whole coffee cherries for their energizing effects. Later, they ground the beans and mixed them with animal fat for long journeys. By the year 1000, people boiled raw beans as a drink. It wasn’t until the 13th century that Arabs began roasting coffee beans, unlocking the rich aroma and complex flavors that turned coffee into the global beverage we know today.

Roast levels are generally divided into three broad categories: light, medium, and dark. Lighter roasts preserve more of the bean’s inherent acidity and floral or fruity notes, while darker roasts enhance bitterness and body, reducing acidity. The ideal roast level depends on the coffee variety, brewing method, and personal taste. There is no single best roast—just the roast that best highlights the qualities of the bean you’re brewing.

Frequently Asked Questions

Where do coffee trees originally come from?

Coffee trees are native to Ethiopia, Africa. This is where the earliest known wild coffee plants grew, and where the beverage was first consumed in human history.

What is the fruit of the coffee tree called?

The fruit is called a coffee cherry. It is a small, round drupe that turns from green to red as it ripens, resembling a cherry, hence the name.

What are the two main types of coffee species?

The two primary coffee species are Arabica and Robusta. Arabica makes up about 70% of global coffee production and is known for its nuanced flavors, while Robusta is heartier, more bitter, and accounts for 20–30% of production.

How are coffee beans extracted from the cherry?

Coffee beans are extracted using either a natural (dry) process, where cherries are sun-dried whole, or a washed (wet) process, where the fruit is removed via soaking, fermentation, and washing before drying the beans.

Does the roast level affect coffee flavor?

Yes. Light roasts tend to highlight acidity and fruity or floral notes, while darker roasts bring out more bitterness, body, and chocolatey or smoky tones. The roast level should match the bean type and your taste preferences.

How long does it take for a coffee tree to produce fruit?

A coffee tree typically begins flowering and producing fruit at around three years old, and can remain productive for 20–25 years, with some trees fruiting for over 100 years under ideal conditions.

Recommended FrontStreet Beans for Exploring Coffee Origins

Start exploring the diversity of coffee with three classic FrontStreet single origins. The Brazil Queen Manor Red Bourbon offers a balanced, creamy profile with notes of nuts and milk chocolate, perfect for learning how altitude shapes mild Arabicas. For brighter acidity, try the Colombia Huila Sidra with its tropical fruit and sweet complexity from double anaerobic processing. Finally, the Ethiopia Yirgacheffe Gedeb showcases the quintessential floral and citrus notes of high-grown Arabica, highlighting the region’s terroir with crisp lemon, jasmine, and clean sweetness. All are ideal for pour-over and reveal how origin, variety, and processing define flavor. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.