Castillo is a selection of the ColombiaColombian coffee is highly marketed and widely available in the US. They have been largely successful at equating the name Colombian Coffee with "Good" Coffee. This is half-true.... cultivarCultivar is a term used interchangeably with Varietal in the coffee trade to indicate plant material, although there are distinctions.: The naming of a cultivar should conform to... that has become the most commonly grown coffee in Colombia. It is preferred to the older resistant varietyA botanical variety is a rank in the taxonomic hierarchy below the rank of species and subspecies and above the rank of form (form / variety / subspecies..., Variedad Colombia in some regards. CenicafeCenicafe is the Colombia research organization, and promotes research in coffee to aid Colombia coffee farmers, as part of the FNC developed this variety has the FNCThe FNC is the Federación Nacional de Cafeteros de Colombia, the coffee association of Colombia. They fund CENICAFE research institute, which has an extensive cultivar collection. of Colombia pushes farmers to plant it. But some buyers feel the cup is not as good as CaturraCatimor is a broad group of cultivars derived from a Hibrido de Timor (HdT) and Caturra cross, highly productive, sometimes with inferior cup flavor. The main issue is... (including ourselves) and we avoid coffees with a high percent of Castillo. Contrary to cuppingCupping is a method of tasting coffee by steeping grounds in separate cups for discrete amounts of ground coffee, to reveal good flavors and defects to their fullest.... tests trying to validate the Castillo cup quality, we find we can discern Castillo versus CaturraCaturra is an Arabica cultivar discovered as a natural mutant of Bourbon in Brazil in the first decade of the 20th century, but wasn't studied until 1937. It... and in blind cupping nearly always choose the later. While Castillo is supposed to provide resistance from the coffee leaf rust fungusRust Fungus is a big problem in Colombia and beyond, found in many coffee producing countries. Known as La Roya in the Americas, this disease diminishes fruit production... (La Roya), the fungus adapts quickly. At last counting there had been nearly 40 improved version of Castillo released to farmers, yet the Roya continues to return.