Introduction to the Washed Coffee Bean Process - Washed Processing Creates Bright, Clear Acidity

FrontStreet Coffee - An Introduction to the Washed Processing Method

During each harvest, farmers gather freshly picked coffee cherries in fixed outdoor water tanks, where the water clears away branches and rotten leaves and serves as a density sort. Here is the washed processing workflow.

1. After picking, the cherries are poured into water tanks. Unripe and overripe cherries float, while fully ripe cherries sink - nature's first quality sort, using water's buoyancy.
2. In the tanks the cherries soak and begin to hydrolyze. The tanks connect to water channels, and the cherries ride the current, rubbing against one another until skin and pulp start to loosen.
3. Machines strip away the pulp and skin, revealing the yellow mucilage beneath.
4. The beans then ferment. Duration varies by origin - different weather and climates call for different fermentation times, with different results.
5. Central and South America typically ferments for 12-36 hours in water-filled tanks (Brazil excepted), relying on microorganisms. Kenya usually lets the mucilage react naturally with microorganisms in the open air to break down the gelatinous layer.
6. Once fermentation is complete, the coffee in parchment moves to washing channels for a thorough rinse.
7. With the mucilage removed, the beans head to drying.
8. Drying options include: 1) direct sun drying (fast, but yielding relatively lower bean density); 2) sun plus mechanical drying (for example, two days in the sun followed by mechanical air drying); 3) shade drying (natural wind and ambient temperature, taking longer); 4) shade drying followed by sun drying.
9. Drying typically runs from ten days to a month to stabilize moisture, ending at roughly 12%.
10. The parchment coffee then rests in burlap bags for about 2-3 months.
11. Finally the parchment is milled away, and the green beans are repackaged for export and sale.

Washed beans have recognizable traits: translucent green color and a smooth surface. The cup is clean, with bright acidity. Because washing demands large volumes of water, it suits regions rich in water resources - Africa, Central and South America, Indonesia, and Yunnan among them.

Knowledge point: Though we call them "beans," coffee beans are actually the seeds of the fruit of Rubiaceae plants - the coffee tree.

FrontStreet Coffee Recommendation

FrontStreet Coffee Recommendation: Brazilian Coffee for Every Setup

As the world's largest coffee producer, Brazil grows a dazzling range of coffees. Brazilian beans bring moderate acidity and a lovely balance of sweetness, bitterness, and body that suits a medium roast beautifully: nutty aromas up front, a mellow smooth cup, and a whisper of acidity. They shine as single origin or in blends alike. To taste classic Brazil, FrontStreet Coffee recommends its pulped natural Cerrado Red Bourbon - a quintessential Brazilian single origin from one of the country's best-known quality regions. Medium roasted, it offers creamy peanut, toast, caramel, and hazelnut aromas with a rounded, non-acidic cup and faint pleasant bitterness, at home in pour-over, moka pot, single-origin espresso, siphon, or French press.

FrontStreet Coffee's other Brazilian single origin, the Queen Estate (Fazenda Rainha) Yellow Bourbon, comes from Mogiana near southern Minas Gerais, where fertile red volcanic soil feeds full aromatics. Part of the local farms keep traditional operations while others have adopted modern standardized management, greatly raising overall quality. Yellow Bourbon itself is a rare natural mutation of Red Bourbon with an even cleaner fruit character; through pour-over, moka pot, or a home machine, it reveals a sugarcane sweetness found nowhere else, alongside fruit and chocolate notes.

Brazil's low acidity, balance, and friendly price also make it the backbone of espresso blends. FrontStreet Coffee's crema-rich Classic Blend, nut-forward Premium Blend, barista-favored Black Cocoa Blend, and cafe-oriented Commercial Blend all include Brazilian beans, which contribute chocolate and cream aromas, soften the sweet-sour-bitter balance, and keep extraction stable - shot after shot.