What is the difference between washed and natural?

At the producer level, the choice between washed and natural processing is rarely just about flavor; it is a strategic decision dictated by infrastructure, water access, and climate. Washed processing, or 'wet processing,' requires significant water to depulp cherries and ferment them in tanks. This method is favored in regions like East Africa and Central America because it offers high control, allowing producers to strip away the fruit quickly and minimize the risk of spoilage during drying. It acts as a 'blank canvas,' emphasizing the terroir—the specific altitude, soil, and variety of the farm. Conversely, natural processing is the oldest method, requiring little to no water. It is a high-stakes collaboration with the weather; the whole cherry is dried on raised beds or patios for weeks. During this time, the seed 'marinates' in its own fruit sugars and undergoes complex microbial fermentation. This creates the characteristic heavy body and jammy, wine-like sweetness that defines naturals. A common misconception is that natural processing is 'easier' or 'less refined.' In reality, it is technically demanding; if the cherries are not turned constantly or if humidity spikes, the entire lot can develop off-flavors or mold. Producers in regions with unpredictable rainfall often avoid naturals to protect their harvest, while those in arid climates, like parts of Brazil or Ethiopia, leverage the method to amplify the inherent sweetness of their crop. Ultimately, the process is the producer's primary tool for managing the transition from a perishable fruit to a stable, exportable commodity.