What is the difference between Supremo and Excelso Colombian coffee?

In the world of Colombian coffee, the terms Supremo and Excelso are often misunderstood as indicators of flavor or quality. In reality, they are physical classification standards based on screen size—the diameter of the green coffee bean. These grades are determined by passing beans through perforated metal screens; the size of the holes determines which beans are categorized as Supremo and which fall into the Excelso category.

Supremo is the larger of the two grades, typically consisting of beans that are screen size 17 or 18. Because these beans are larger, they are often perceived as more uniform and easier to roast evenly, which has historically led to a premium price in the market. Excelso, by contrast, encompasses smaller beans, generally ranging from screen size 14 to 16. Despite the difference in size, both grades can originate from the same harvest or even the same coffee tree.

It is important for consumers to recognize that these grades do not measure the sensory profile or the 'specialty' status of the coffee. A high-quality, well-grown Excelso lot from a high-altitude region can often outperform a lower-quality Supremo lot in a blind cupping. While the larger size of Supremo is aesthetically pleasing and useful for commercial consistency, the actual flavor profile is dictated by factors like altitude, processing, and variety rather than the physical dimensions of the bean.

In practice, when you see these labels on a bag, they tell you about the physical preparation of the coffee rather than its taste. Many exporters also use the 'European Preparation' (EP) standard alongside these grades, which ensures that the beans have been hand-sorted to remove defects. When shopping, focus more on the region, the farm, and the roast date, as these will provide a much clearer picture of what you can expect in your cup than the size of the bean alone.