The Cultured Washed process, developed by Café UBA after years of experimentation, begins with freshly harvested coffee cherries being placed in a bag for 10–12 hours to rapidly raise their temperature. Naturally occurring bacteria on the cherries and in the environment start converting carbohydrates into sugars, further increasing the temperature. The cherries are then cooled in a water tank at 8–10 °C before being de-pulped. Meanwhile, coconuts are prepared for addition to a yeast and bacteria culture. The de-pulped coffee, prepared fruits, and activated starter cultures are placed in tanks for anaerobic fermentation, which lasts 6–8 days. Once fermentation is complete, the coffee is washed and sun-dried for 15–20 days to achieve the perfect humidity level.