How Coffee Is Harvested and Processed After Picking

Ever wonder why your cup of coffee tastes wildly different depending on where it’s from? That flavor starts long before roasting—in the field, during harvest, and in how the coffee cherry is processed just after picking. The way coffee is handled right after harvest has a massive impact on the final cup profile, influencing everything from sweetness and body to acidity and aroma.

Coffee cherries are picked at different times each year, depending on where in the world they grow. Once harvested, those cherries must be processed within days to prevent spoilage. There are two main methods: natural (dry) processing and washed (wet) processing. Each creates distinct flavors and requires specific steps to turn the fruit into green coffee beans ready for export.

When Are Coffee Cherries Harvested?

Coffee is harvested at various times of the year, based on geographic location, climate, and altitude. Each producing country has its own harvest season. For example, some regions harvest from May to July, others from October to February. The exact timing depends on when the coffee cherries ripen fully—which is influenced by local weather patterns, elevation, and growing conditions.

How Are Coffee Cherries Picked?

Coffee cherries don’t all ripen at once, so pickers must choose ripe ones. The most common methods are:

• Hand-picking: Selectively picking only ripe cherries, often with the help of small tools like rakes or fingers. This is labor-intensive but allows for high quality, especially at higher altitudes.
• Raking with small tools: Using small rakes or combs to remove ripe cherries more efficiently while still maintaining some selectivity.
• Stripping with poles or sticks: Beating branches to shake cherries loose. This is faster but non-selective—unripe and overripe cherries often drop too, requiring extra sorting later.
• Mechanical harvesters: In flat areas where terrain allows, specialized machines can pick cherries automatically. These are less common due to cost and field limitations.

Why Processing Must Start Quickly

Because coffee cherries are delicate, processing must begin within days of harvest. If left too long, the fruit’s pulp and mucilage can start to ferment, damaging the seed inside—the part we roast and brew. Proper timing ensures the coffee develops the right flavors and avoids off-tastes caused by rot or over-fermentation.

What Are the Two Main Coffee Processing Methods?

After harvest, producers use one of two main methods to remove the coffee bean from the fruit: dry (natural) processing or wet (washed) processing. Each results in different flavor profiles and requires a distinct set of steps.

Dry Processing (Natural Process)

The dry process, also called natural processing, is one of the oldest and most widespread methods—especially common in Brazil and parts of West Africa. Here’s how it works:

• Whole coffee cherries are spread out in thin layers on large patios or raised beds.
• The cherries are left to dry under the sun for 15 to 20 days.
• Workers regularly turn the cherries to ensure even drying and prevent mold or spoilage.
• Once dried to the proper moisture level (typically below 12%), the outer fruit, pulp, and parchment are removed mechanically.

This method tends to produce fuller-bodied, sweeter, and fruitier coffees due to prolonged contact between the bean and the fruit’s sugars during drying.

Wet Processing (Washed Process)

The wet or washed process is more complex, labor-intensive, and requires access to significant water resources. It’s widely used in Central America (like Guatemala and Costa Rica), Colombia, Kenya, and Tanzania. The steps include:

• Cleaning: Freshly picked cherries are sorted and cleaned to remove dirt, leaves, and unripe fruit.
• Depulping: A machine removes the outer skin and some pulp, leaving the beans encased in sticky mucilage.
• Fermentation: The beans are soaked and left to ferment, which breaks down the remaining mucilage. This can take anywhere from a few hours to a full day, depending on conditions.
• Washing: After fermentation, the beans are thoroughly washed to remove all leftover pulp and mucilage.
• Drying: The beans, now in their parchment layer, are dried on patios or raised beds for 10 to 14 days until they reach around 11% moisture.
• Hulling and polishing: Finally, the parchment is removed, and beans may be polished to remove any remaining silverskin or impurities.

Washed coffees typically have a cleaner, brighter acidity and more pronounced floral or citrus notes compared to naturals. This method highlights the bean’s intrinsic qualities rather than the fruit’s sugars.

What Happens After Processing?

Once processed, the green coffee beans are packed into jute or burlap sacks, usually weighing around 60 kilograms (about 132 pounds). These sacks are stored in covered warehouses to protect the beans from humidity, pests, and temperature swings. From there, they begin their journey to roasters and eventually, your cup.

Frequently Asked Questions

When is coffee harvested each year?

Coffee is harvested at different times globally, depending on the country, altitude, and climate. Common harvest periods range from May to July in some regions and October to February in others. Each coffee-growing area has its own seasonal cycle based on when cherries fully ripen.

What are the two main ways to process coffee beans?

The two primary coffee processing methods are dry (or natural) processing and wet (or washed) processing. Dry processing involves drying the whole cherry in the sun, while wet processing removes the fruit before drying the bean, resulting in cleaner flavors.

Does the way coffee is processed affect the taste?

Yes. Dry-processed coffee often has a fuller body, more sweetness, and fruity notes due to fermentation with the cherry fruit. Wet-processed coffee tends to be cleaner, brighter, and more acidic, highlighting the bean’s inherent qualities rather than the fruit sugars.

How long does coffee processing take?

Dry processing takes about 15 to 20 days of sun drying. Wet processing may take several days to a week or more, including fermentation, washing, and drying—often 10 to 14 days for the drying phase alone, depending on weather and conditions.

Why must coffee be processed quickly after harvest?

Coffee cherries are delicate and can begin to ferment or rot soon after picking. If the beans inside aren’t removed and dried promptly, unwanted flavors develop, ruining the quality of the final coffee.

What happens to coffee beans after they’re processed?

After processing, green coffee beans are packed into 60-kilogram sacks and stored in shaded warehouses. They are then transported to roasters worldwide, where they are roasted before being brewed.

FrontStreet Coffee Beans That Highlight Processing Methods

Explore the impact of processing with FrontStreet Coffee’s Ethiopia Yirgacheffe, a bright washed coffee with notes of citrus, jasmine, and lemonade. For natural-process complexity, try their Ethiopia Guji Humbera, offering blueberry, tropical fruit, and winey tones. Both showcase how processing shapes flavor. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.