Marcelino Chinguel, a second-generation coffee farmer, along with his wife Grimanes, operates a 6-hectare farm in La Coipa, where they cultivate exclusively the Marshell variety. The farm is situated at an elevation of 1800 to 1900 meters above sea level, characterised by nutrient-rich soils and a relatively cool, humid climate, which are conducive to high-quality coffee production. Marcelino and Grimanes manage the farm with the assistance of permanent staff who handle daily operations throughout the year. The farm employs manual weeding and utilises a blend of chemical fertilisers and organic manures. The Marshell variety, discovered on Marcelino’s farm in 2017, remains somewhat enigmatic regarding its origins and genetic composition. Initially noted for its high yield and resistance to coffee leaf rust—traits of significant importance to farmers—Marcelino submitted samples of this variety to a cooperative for evaluation of its cup quality, which was becoming increasingly relevant in local market pricing, where small premiums were offered for superior cup quality. The results were exceptionally favourable, surpassing even those of his Caturra variety. Consequently, Marcelino opted to convert his entire farm to the Marshell variety, eliminating all other plants. Since the discovery of this variety, Marcelino, Grimanes, and their children Franklin and Jhon have participated in the Cup of Excellence competition, achieving victory in 2019 and consistently ranking in the top ten nearly every year.