What is the main spirit used in a Cuba-Libre?

The main spirit used in a Cuba-Libre is light rum. This cocktail originated in Cuba and is traditionally made by combining light rum with cola and fresh lime juice. The rum adds a distinct sweetness and depth to the drink, which complements the flavors of the cola and the tartness of the lime.

Light rum, known for its clear appearance and smooth taste, is particularly well-suited for mixed drinks like the Cuba-Libre, where it enhances the overall flavor profile without overwhelming the other ingredients. The refreshing and balanced nature of this cocktail showcases the unique characteristics of light rum, making it the essential spirit in this classic drink.