How Coffee Is Grown: From Fruit to Specialty Bean

Coffee doesn’t grow on vines or bushes—you’re drinking the seed of a bright-red fruit that grows on a tree. But how does that fruit become the coffee you brew? The journey from flowering tree to roasted bean involves specific altitudes, hand-picking, and two very different processing methods. If you’ve ever wondered why some coffees taste clean and bright while others are bold and bitter, the answers start on the farm.

Coffee comes from the seeds of a red fruit called a coffee cherry, which grows on trees reaching 20 feet tall—but are pruned to 8–10 feet for easier harvesting. It takes 3–5 years for a coffee tree to bear fruit, which then goes through harvesting, processing, and drying before becoming the green beans used for brewing.

What Is Coffee? The Fruit Behind the Bean

Coffee is the seed inside a fruit produced by a shrub-like tree belonging to the Rubiaceae (madder) family. These evergreen trees grow naturally along a narrow tropical belt at around 6,000 feet (1,800 meters) above sea level. Though they can reach up to 20 feet, most are kept at 8–10 feet for manageable harvesting. The fruit—called a coffee cherry—starts as a white flower resembling jasmine. After the flower falls, it develops into a deep green fruit that ripens through yellow and red stages, finally turning deep red when ready to pick. Inside each cherry are two seeds: your coffee beans.

How Coffee Is Harvested: One Cherry at a Time

Because coffee cherries don’t all ripen at once, they are picked by hand, one by one. This labor-intensive method ensures that only ripe cherries are harvested, though it’s slower and more costly than mechanical picking. Each tree may be visited multiple times during the harvest season to pick only the cherries at peak ripeness.

How Coffee Is Processed: Washed vs Natural

Once picked, coffee cherries must be processed quickly. There are two main methods:

• Natural (Dry) Process: Cherries are spread out in the sun for 12–15 days to dry whole. Later, the dried fruit is removed to reveal the beans. This method is cheaper but can result in uneven drying, fermentation issues, and off-flavors, especially if it rains. The beans may be less consistent and have more earthy or fermented notes.
• Washed (Wet) Process: A more modern and cleaner method taking 20–24 hours. The cherries are soaked to remove the outer fruit, then the beans are dried (still in their parchment layer) before the final husk is removed. This results in clean, bright, high-quality beans with fewer defects. The beans, still coated in a “parchment” skin, are called parchment coffee and are stored this way until export. Right before shipping, the parchment is removed and beans are polished and graded.

Exported beans are sorted and polished, but before roasting they’re still green—these are known as green coffee beans.

The Three Main Coffee Varieties: Arabica, Robusta & Liberica

Coffee beans fall into three primary species, each with distinct characteristics:

1. Arabica

• World market share: 70%–80%
• Grows best: 1,500–6,000 ft (500–1,800m+) altitude; higher elevations improve quality
• Climate: Prefers moderate temperatures, sensitive to extreme heat/cold
• Rainfall: Requires consistent rainfall, not overly dry or wet conditions
• Caffeine content: 1.1%–1.7% (lower)
• Creama: Moderate
• Tree height: ~5m
• Bean shape: Elliptical and flat
• Flavor: Good aroma, brighter acidity, sweeter and more complex profile
• Common origins: Brazil, Colombia, Ethiopia, Yemen, Kenya, Honduras, Indonesia, and more

2. Robusta

• World market share: 20%–30%
• Grows best: Below 1,500 ft (500m), easy to cultivate
• Climate: Tolerates high temperatures well
• Rainfall: Adapts to both wet and dry conditions
• Caffeine content: 2%–4% (higher)
• Creama: Higher
• Tree height: ~12m
• Bean shape: Short, round, oval
• Flavor: Stronger bitterness, less acidity, often harsher with fewer aromatic qualities
• Common uses: Mostly used in instant coffee
• Common origins: Uganda, Vietnam, Côte d’Ivoire, Angola, India, Indonesia (Java), and more

3. Liberica

• World market share: Under 5%
• Grows best: Below 200 ft (lowlands and flatlands)
• Climate: Very hardy, tolerates both extreme heat and cold
• Rainfall: Adapts to varied rainfall conditions
• Caffeine content: Not specified in source
• Creama: Not specified in source
• Tree height: ~18m
• Bean shape: Pointed, diamond-like
• Flavor: Strong bitterness, less desirable aroma
• Common origins: Liberia, Suriname, Guyana, Cameroon, and more

Coffee & Caffeine: What’s in Your Cup?

Caffeine is the primary compound behind coffee’s bitter taste and stimulating effects. Found not just in coffee but also in tea, chocolate, and cola, caffeine affects the body for roughly 2–3 hours. In moderation, it can boost alertness and improve blood circulation. The amount varies by coffee species—Arabica has less, Robusta more.

Frequently Asked Questions

What is a coffee cherry?

A coffee cherry is the fruit of the coffee tree, containing two seeds (coffee beans) inside. It starts as a white flower, turns green, then ripens through yellow and red before becoming deep red when fully mature. The beans are harvested from inside the cherry.

What are the two main coffee processing methods?

The two main methods are washed (wet) process and natural (dry) process. Washed coffee is cleaned and dried in 20–24 hours, resulting in clean, high-quality beans. Natural process dries the whole cherry in the sun for 12–15 days, which is cheaper but can lead to inconsistent flavors if not carefully managed.

Which coffee species is the most common?

Arabica makes up 70%–80% of global coffee production. It’s known for its balanced flavor and is grown mainly at higher altitudes. Robusta accounts for 20%–30% and is more bitter and caffeinated, often used for instant coffee. Liberica is rare, under 5% of production, with a strong, unique flavor.

Why are coffee beans green before roasting?

Green coffee beans are the seeds after processing and drying but before roasting. They’re stored and shipped in this state. Roasting transforms them into the brown beans used for brewing, developing flavor and aroma through the Maillard reaction and other chemical changes.

How tall do coffee trees grow?

Coffee trees can grow up to 20 feet tall but are usually pruned to 8–10 feet to make harvesting easier. Different species vary in height: Arabica grows to about 5m, Robusta to 12m, and Liberica up to 18m.

Recommended FrontStreet Beans for Coffee Variety Exploration

Try FrontStreet Coffee’s Ethiopia Yirgacheffe for classic bright Ethiopian Arabica with floral and citrus notes, perfect for exploring the high-altitude Arabica profile. For contrast, their Colombia Huila offers balanced medium-bodied Colombian Arabica with caramel and nutty tones. Both are specialty-grade green beans ideal for home roasting or learning about Arabica’s diverse flavours. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.