How Coffee Cherries Are Processed Into Green Beans

Ever wondered how your bright Ethiopian pour-over or bold Brazilian espresso starts life? It all begins with the coffee cherry—a fruit that grows on trees 6,000 feet above sea level, ripening slowly over months. But before it becomes the beans you grind, it must be harvested and processed. The way those coffee fruits are handled has a huge impact on your cup’s final flavor, cleanliness, and body.

Coffee cherries typically need 20 to 30 days to process—either via washed (20–24 hours) or natural/dried methods (12–15 days in the sun). The choice affects everything from flavor clarity to cost and defect rates.

What Is a Coffee Cherry?

Coffee comes from the fruit of a tropical evergreen shrub in the Rubiaceae family. These coffee trees grow best along a narrow subtropical band around the globe, usually reaching 20 feet tall—but are pruned to 8–10 feet for easier picking. It takes 3 to 5 years for a tree to bear fruit. First come small, jasmine-like white flowers. After pollination, deep green cherries form, then turn yellow, red, and finally deep red when fully ripe. Inside each cherry are two seeds—we call them coffee beans.

How Are Coffee Cherries Harvested?

Coffee cherries don’t all ripen at once. To ensure only ripe fruit is picked, nearly all harvesting is done by hand, one cherry at a time. This labor-intensive method ensures better quality but increases costs. Pickers select only the deep red, fully mature cherries, leaving underripe or overripe ones on the branch.

The Two Main Coffee Processing Methods

Once picked, coffee cherries must be processed quickly to prevent spoilage. There are two primary methods: natural (dry) and washed (wet). Each creates distinct flavors in the resulting green beans.

Natural (Dry) Process

In the natural method, whole coffee cherries are spread out on concrete patios or raised beds and left to dry in the sun for 12 to 15 days. The fruit dries around the seeds, and once moisture levels drop sufficiently, the dried husk, pulp, and parchment are removed to reveal the green bean inside. This method is low-cost and simple but risks fermentation flaws if it rains. The beans often have more body and fermented or wild flavors, but can also be inconsistent due to uneven drying or over-fermentation.

Washed (Wet) Process

The washed process is more complex but yields cleaner, brighter flavors. Within 20 to 24 hours of harvest, cherries are pulped to remove the outer skin, then the beans (still coated in sticky mucilage) are soaked in water. Fermentation breaks down the mucilage, after which the beans are rinsed and dried on patios or raised beds—typically for 10–14 days—until they reach around 11% moisture. The dry beans are still encased in a protective parchment layer, known as parchment coffee. Before export, this layer is removed (called hulling), and the beans may be polished and sorted by grade. Washed coffees are known for their clarity, high acidity, and lack of fermentation defects. The process is faster, produces fewer defective beans, and results in a cleaner cup—but requires more water, equipment, and investment.

Coffee Bean Varieties

Not all coffee beans are the same. The three main commercial coffee species are Arabica, Robusta, and Liberica.

• Arabica : Originating in Ethiopia, Arabica makes up 70–80% of global production. It’s known for its nuanced flavors, higher acidity, and lower caffeine content. Most specialty coffees are Arabica, including celebrated varieties like Geisha and Typica.
• Robusta : Grown mainly in Africa’s Congo region, Robusta accounts for 20–30% of the world’s coffee. It’s bitter, harsher, and has nearly double the caffeine of Arabica. Due to its strong, harsh profile and high bean resilience, it’s mostly used in instant coffee and some espresso blends for crema and body.
• Liberica : Native to Liberia, this species makes up less than 5% of global production. It has an unusual, strong flavor profile with intense bitterness and a distinctive, woody aroma. It’s rare in the specialty market.

Of these, Arabica is the dominant species in specialty coffee due to its complexity and quality potential. The way it’s processed—washed or natural—plays a major role in the flavors you taste in your cup.

What Happens After Processing?

After drying, the beans remain in their parchment shells (parchment coffee) for storage and transport. Just before export, this layer is removed. The green beans may then be polished (optional) and sorted by density and size to grade the lot. Defective beans are removed, and the remaining high-quality beans are prepared for roasting.

Image Examples of Natural Process Coffees

FrontStreet Coffee offers several single-origin naturals that highlight the impact of this method:

These coffees typically show more body, sweetness, and fermented or fruity tones due to extended contact with the cherry during drying.

Frequently Asked Questions

What is the difference between washed and natural coffee processing?

Washed coffee removes the fruit and mucilage from the bean before drying, resulting in a cleaner, brighter cup with higher acidity and fewer defects. Natural processing dries the coffee cherry with the bean inside, creating a fuller body and more fermented, fruity flavors but with a higher risk of inconsistency or off-flavors.

How long does coffee cherry processing take?

Washed processing typically takes 20 to 24 hours for pulping and fermentation, plus 10–14 days of drying. Natural processing takes 12 to 15 days of sun drying with the fruit intact on the bean.

Why are coffee cherries harvested by hand?

Coffee cherries ripen at different times on the same tree. Hand-picking ensures that only fully ripe, deep red cherries are selected, improving quality and flavor consistency. Machine harvesting gathers all cherries at once, often including underripe or overripe ones.

What are the main types of coffee beans?

The three main coffee species are Arabica, Robusta, and Liberica. Arabica makes up 70–80% of global production and is known for its high quality and complex flavors. Robusta is harsher, more bitter, and higher in caffeine, used mostly in instant coffee. Liberica is rare, with a strong, woody flavor and less than 5% of global output.

What is parchment coffee?

Parchment coffee refers to green coffee beans that are still encased in their protective outer layer, called parchment, after drying. This layer is removed before export to reveal the green bean used for roasting.

Does processing affect coffee flavor?

Yes. Washed processing highlights clarity, acidity, and cleanliness in the cup. Natural processing enhances body, sweetness, and fruitiness but can introduce fermented or wild notes. The method directly shapes the final flavor profile of the roasted bean.

Recommended FrontStreet Beans for Natural Process Fans

Explore FrontStreet’s naturally processed coffees to experience the bold, fruity profiles of the dry method. The Ethiopia Yirgacheffe Red Cherry is a classic natural, offering tropical fruit and fermentation sweetness after medium roast. For something richer, try the Ethiopia Humbera, a natural processed Sidama lot with floral notes and dense body. Lastly, the Brazil Queen Manor uses a semi-natural style to deliver low-acid sweetness with chocolate and nut depth. All showcase how sun-drying affects cup character. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.