Anaerobic washed is a modern adaptation of the traditional washed process that gives producers greater control over fermentation while preserving the clarity and transparency that washed coffees are known for. For this lot, after harvest, ripe cherries are fermented for 120 hours in sealed, oxygen-free tanks under carefully monitored conditions. The cherries are then washed to halt fermentation and remove the remaining mucilage before the coffee is dried for 25 to 30 days under carefully controlled ventilation, protecting the bean's structure while preserving delicate aromatics. Once drying is complete, the coffee rests until it reaches a stable 11 to 12% moisture content, ensuring cup clarity and fermentation precision.
When executed thoughtfully, anaerobic washed processing enhances rather than transforms a coffee. In this case, the highly controlled fermentation allows for an unusually long fermentation without overshadowing the coffee's inherent character. Rather than dominating the cup, it increases sweetness, amplifies aromatics, and adds complexity while preserving the clean finish and distinct sense of origin that make washed coffees so expressive. As with any processing method, success depends less on the technique itself than on the care and precision of the producer.