How are coffee cherries harvested?

Coffee harvesting is the most labor-intensive stage of coffee production, often accounting for up to half of a farm's total operating costs. The method chosen depends heavily on the farm's geography, labor availability, and the desired quality tier of the final product. In regions with steep, mountainous terrain, such as parts of Colombia or Ethiopia, hand-picking is the only viable option, as machinery cannot navigate the slopes.

Selective hand-picking is the gold standard for specialty coffee. Skilled pickers return to the same trees multiple times throughout the harvest season, selecting only the cherries at peak ripeness. This meticulous approach minimizes the presence of defects, leading to a cleaner, more consistent cup. While labor-intensive, it allows farmers to maximize the value of their crop by ensuring that every cherry harvested is at its optimal sugar content.

In contrast, mechanical harvesting is common on large, flat plantations, particularly in Brazil. These machines straddle rows of coffee trees, using vibrating rods or rotating brushes to knock cherries onto conveyor belts. While this method drastically increases efficiency and reduces labor costs, it is inherently non-selective. It strips the branch of everything—ripe, under-ripe, and over-ripe cherries, as well as leaves and twigs.

To bridge the gap between efficiency and quality, many producers use 'strip picking,' where workers pull their hands along a branch to remove all cherries at once. This is faster than selective picking but requires significant post-harvest processing. Farmers often use water-based sorting tanks, where ripe, dense cherries sink while under-ripe or damaged cherries float, allowing for separation before the drying process begins.

In recent years, technology has evolved to include more sensitive mechanical harvesters and hand-held vibrating tools known as 'derricadeiras.' These tools allow workers to vibrate specific branches to release only the ripe fruit onto tarps. Ultimately, the choice of harvesting method is a balance between the economic necessity of speed and the pursuit of the highest possible cup quality.