El Mirador is an experimental farm run by BanExport in Colombia. The farmer, Elkin Guzman, is an agricultural scientist who experiments with different farming and processing practises to improve the expression of each varietal on his farm. In the case of Castillo, Elkin found he could pick the cherries at a higher degree of ripeness and darker colour than some of his other coffee varietals. This extended ripeness caused the coffee to reach an average sugar level of 24%, which is extremely high for coffee. To take advantage of this sugar, Elkin has dried this coffee very slowly as a Honey process., which maximises sweetness and delicate florals in the coffee.
Coffee beans are judged on a 100-point scoring system that assesses body, balance, uniformity, sweetness, clarity and acidity. Coffee scoring 80+ points is considered specialty coffee.