What distinguishes Robusta coffee from Arabica coffee in terms of shape?

The distinguishing feature of Robusta coffee compared to Arabica coffee in terms of shape lies in the roundness and centerline of the beans. Robusta beans are generally rounder and have a straighter centerline, which sets them apart from Arabica beans that tend to be more oval-shaped with a curved centerline. This physical difference can be attributed to the genetics of the coffee plant and affects not only the appearance of the beans but also their taste and growing conditions. Understanding these morphological characteristics is essential for coffee identification and classification within the specialty coffee field.