Washed

Washing coffee is a child of the colonial plantation era. As coffee spread from Yemen through the Caribbean and into Latin America in the 1700s and 1800s, growers in wetter climates needed a way to dry beans before the fruit rotted around them. The answer was to pulp the cherry soon after picking, let a short natural fermentation loosen the sticky mucilage, then wash it away and dry the clean bean in its parchment shell. Mechanical pulpers in the nineteenth century turned this into an industrial standard.

The method became the backbone of the "mild arabica" trade. Colombia, Central America, Kenya and Ethiopia's washed lots built their reputations on the clarity it gives: with the fruit gone early, nothing masks the character of the seed itself, so altitude, soil and variety speak clearly. That is why washed coffees are still the reference point cuppers use to understand an origin.

The trade-off is resources. Traditional washing uses a lot of water, so modern mills increasingly use eco-pulpers and mechanical demucilagers that get the same clean result with a fraction of it.