Washed Processing

What Is Washed Processing?

Washed processing — also called wet processing — removes all fruit from the bean before drying. The result is a clean, transparent cup where the bean's intrinsic qualities — origin, variety, terroir — shine without fruit-fermentation influence.

The Process Step by Step

1. Harvesting — selective picking of ripe cherries
2. Depulping — mechanical removal of the outer skin and most fruit flesh
3. Fermentation — beans soak in water tanks (12-72 hours) to dissolve remaining mucilage
4. Washing — beans are rinsed in clean water channels
5. Drying — on raised beds or patios until 10-12% moisture
6. Hulling — parchment removal before export

Flavor Impact

Washed coffees are beloved for their clarity and definition:

• Bright, vibrant acidity — citrus, malic, phosphoric
• Clean, articulate flavors — you taste the bean, not the fruit
• Lighter body compared to naturals
• Floral and tea-like qualities in the best examples
• Consistent quality — less dependent on weather during drying

Water Requirements

The main drawback of washed processing is its significant water usage. Modern facilities are implementing water recycling and eco-pulping technology to reduce environmental impact, but access to clean water remains a limiting factor in some regions.

Where It Dominates

Washed processing is the standard in Colombia, Kenya, Central America, and highland Ethiopia. Regions with abundant water and unpredictable weather during harvest favor this method because the controlled fermentation reduces the risk of defects.

At Röstschmiede, washed coffees make up a significant part of our selection. Their transparency and precision allow us to highlight the unique character of each origin through our roasting profiles.