When and How Coffee Beans Are Harvested and Processed

If you’ve ever wondered why your Ethiopian pour-over tastes wildly different from your Brazilian espresso, part of the answer lies not just in origin—but in when and how those coffee cherries were picked and turned into beans. The journey from tree to roast starts long before roasting, in the harvest and processing stages that define each coffee’s character.

Coffee is harvested at different times each year depending on country, climate, and altitude, and must be processed within days of picking to avoid spoilage. There are two main processing methods: dry (natural) and wet (washed), each impacting flavor and requiring specific techniques.

When Is Coffee Harvested?

Coffee cherries are picked during different months each year, based on where the coffee is grown. The harvest season shifts depending on geography, climate, and elevation. For example, countries near the equator may have defined harvest periods, while others at higher altitudes or latitudes experience variations. Each producing country has its own unique calendar based on these factors.

How Are Coffee Cherries Picked?

Mature coffee cherries are collected either by hand using selective methods—like hand-picking or small rakes—or more quickly with machines that knock the cherries off the branches. The first two hand methods allow pickers to choose only ripe fruit, improving quality, especially in regions with lower labor costs. Stripping with poles is faster but less selective, often requiring extra sorting later. In flat, accessible areas, specialized mechanical harvesters can also be used where the terrain allows.

Why Processing Must Start Quickly

Because coffee cherries are delicate, the beans inside must be processed within just a few days of harvest. Delay risks fermentation or mold due to the fruit’s pulp and mucilage breaking down. How the beans are processed—removing the fruit and drying the seed—is critical to their final flavor profile and quality.

Dry Processing (Natural Process)

Dry processing, also known as natural processing, is mainly used in Brazil and West Africa. In this method, whole coffee cherries are spread out in the sun on large patios or raised beds. The cherries are regularly raked or turned to ensure even sun exposure over a 15 to 20 day drying period. This slow drying develops distinct sweetness and body, with more fruity and fermented flavors compared to other methods. It requires low humidity and consistent sunlight to avoid spoilage.

Wet Processing (Washed Process)

Wet processing, also called the washed or “mild” process, is more complex and labor-intensive. Common in Central America (e.g. Costa Rica, Guatemala), Colombia, Kenya, and Tanzania, this method begins with cleaning the cherries, then removing the skin and pulp. The beans, still coated with sticky mucilage, are fermented in water to break down the remaining fruit layer. After fermentation, the beans are washed clean and dried on patios or raised beds until they reach a safe moisture level. Finally, the beans are hulled to remove the parchment layer, cleaned of any remaining debris, and sometimes polished. This method typically results in a cleaner, brighter cup with higher acidity and more distinct origin characteristics.

How Processed Beans Are Stored and Shipped

After processing, green coffee beans are packed into 60-kilogram (about 132-pound) jute or burlap sacks. These sacks are stored in covered warehouses to protect them from moisture and pests. From there, the beans begin their journey to roasters and eventually coffee drinkers around the world.

Frequently Asked Questions

When is coffee harvested in different countries?

Coffee is harvested at various times of the year depending on the country’s geography, climate, and altitude. Each producing region has its own harvest season, typically ranging from several weeks to a few months, based on when cherries ripen naturally in that environment.

What are the two main ways to process coffee beans?

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

How long does coffee cherry drying take in the dry process?

In the dry processing method, coffee cherries are dried in the sun for 15 to 20 days. They are regularly turned to ensure even drying and prevent spoilage.

What steps are involved in wet processing of coffee?

Wet processing includes cleaning the cherries, removing the skin and pulp, fermenting to dissolve the mucilage, washing, drying the beans, hulling off the parchment, and cleaning/polishing the final green beans.

Why must coffee be processed soon after harvest?

Coffee cherries must be processed within days of harvest to prevent the pulp and mucilage from fermenting or rotting, which can ruin the beans and negatively affect flavor.

How are processed coffee beans stored before export?

Processed green coffee beans are packed into 60-kilogram sacks and stored in covered storage facilities to protect them from moisture and pests before being shipped worldwide.

Recommended FrontStreet Beans for Harvest & Processing Study

Explore the impact of harvest and processing with FrontStreet Coffee’s Ethiopia Yirgacheffe, a washed coffee offering bright citrus, floral notes, and a juicy body; their Brazil Santa Ines, a natural processed bean with sweet chocolate, nutty undertones, and a heavy body; and their Kenya AB, a washed lot with vibrant acidity, blackcurrant, and wine-like complexity. These beans highlight 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.