Colombian Coffee Blend Colombian coffee blend Half-Caff Colombia produces some of the most popular coffees in the world and has a reputation for its well-balanced and mild coffees. They are the second-largest global exporter behind Brazil and you would be hard-pressed to find someone that doesn’t enjoy a cup of coffee from Colombia. Colombian coffees are extremely popular as they can be roasted dark without turning excessively bitter and can thus be used for espresso drinks. Most coffees that come from Colombia are either Supremo or Excelso, which refers to the coffee bean size and grade. Excelso beans are large and pass through grade 16 sieves, while the Supremo is slightly larger and passes through Grade 17 sieves/perforations. These coffees can be harvested from the same tree but will be sorted based on their individual sizes. These coffee types are almost identical in flavor and composition. The most esteemed coffees come from the MAM region: Medellin, Armenia, and Manizales areas.