What Is the Difference Between Picking, Stripping, and Machine Harvesting?
Picking selects individual ripe cherries by hand — highest quality. Stripping strips all cherries off a branch — faster but includes unripe ones. Machine harvesting shakes the whole tree.
Why that matters
The three harvesting methods differ fundamentally in effort, cost, and quality outcome.
Picking (selective hand-harvesting) is the most labour-intensive method. Pickers walk through the rows and take only cherries at the right stage of ripeness — bright red, plump, no discolouration. They return three to five times per season. An experienced picker harvests 50–100 kg of cherries per day. After processing and roasting, that equates to just 10–20 kg of roasted coffee. The labour per kilogram is enormous, which is why picking coffee costs more.
Stripping is faster. One hand grips the branch, the other strips all cherries off in a single motion — ripe, unripe, and overripe together. Sorting happens afterwards, often by flotation in water tanks (ripe cherries are denser and sink). Despite post-sorting, more unripe cherries make it into processing, which can negatively affect flavour: green, grassy notes, missing sweetness.
Machine harvesting uses shaking machines that vibrate the coffee tree, dropping cherries onto collection tarps. This only works on flat, level plantations — steep highlands in Colombia or Ethiopia are ruled out. The method is cost-efficient for mass production but qualitatively the weakest of the three options.
The harvesting method sets the ceiling for quality. No roaster, however skilled, can make good coffee from unripe beans. That’s why specialty coffee always starts at the harvest.
At Green Wall Coffee
At our café on Sophienstraße 27 in Berlin-Lichtenberg, we pay attention to the harvesting method when selecting our coffees. The bags rarely say “picking” explicitly, but the origin farms and cooperatives our roasters work with harvest exclusively by selective picking. That’s part of the quality promise that defines specialty coffee.
More depth on this topic in the article How to Make Perfect Espresso. Or stop by at Sophienstraße 27 — Mon–Fri 8am–5pm, Sat 10am–5pm.