Chiroso

Chiroso is a distinct coffee variety that has gained significant prestige in the specialty coffee sector, particularly for its ability to produce cup profiles reminiscent of high-end Ethiopian coffees while being grown in the Colombian Andes. The name itself is derived from rural Colombian slang, where 'chiroso' describes something elongated or stretched out, a direct reference to the variety's notably long bean shape compared to the more common, compact varieties found in the region. For years, the variety was shrouded in mystery and often mislabeled by local producers as 'Caturra Chiroso,' under the assumption that it was a simple mutation of the Caturra cultivar.

Genetic research has fundamentally shifted the understanding of Chiroso's lineage. While it was long thought to be a regression or mutation of Bourbon or Caturra, modern genetic studies—including those analyzing chloroplast genomes—have identified a clear connection to Ethiopian landrace germplasm. This discovery explains why the variety consistently displays sensory characteristics that diverge from the typical Colombian Bourbon-Typica profile, offering a complex, aromatic, and tea-like experience that has captured the attention of roasters and competition judges alike.

In the field, Chiroso is primarily associated with the municipality of Urrao in southwest Antioquia, Colombia. There are two recognized types of the cultivar: the original 'Bourbon Chiroso,' which grows as a taller plant, and the 'Caturra Chiroso,' which is shorter in stature. Anecdotal evidence from producers suggests that the shorter Caturra-type may be a regression of the taller Bourbon-type, as seeds from the taller plants can occasionally produce the shorter variant. Despite its popularity in specialty circles, it remains a relatively rare cultivar, largely confined to specific micro-climates in Colombia.

Producers choose to cultivate Chiroso primarily for its exceptional cup quality and its ability to command premium prices in the specialty market. Since a Chiroso lot achieved first place in the 2014 Colombia Cup of Excellence, the variety has been increasingly sought after for its delicate floral notes, bright acidity, and complex fruit sweetness. Tasting notes often include chamomile, Earl Grey tea, red rooibos, stone fruits, and citrus, making it a standout in cupping sessions and a favorite for competition-grade microlots.

From a production standpoint, the variety requires careful management. Because it is not a widely distributed commercial hybrid, farmers often rely on traditional propagation methods, and the variety lacks the extensive disease-resistance profiles found in modern, bred hybrids like F1 varieties. However, its unique genetic background and the high demand for its flavor profile provide a strong economic incentive for smallholder farmers in Antioquia to maintain and propagate these trees despite the challenges of managing a less standardized crop.

Today, Chiroso stands as a prime example of how genetic science is correcting long-held misconceptions in the coffee industry. It serves as a reminder that local naming conventions, while useful for regional identification, do not always reflect the true biological heritage of a plant. As more research is conducted on its genome, Chiroso continues to be recognized not just as a local curiosity, but as a significant genetic asset that bridges the gap between the traditional Colombian coffee landscape and the ancestral diversity of Ethiopian coffee.