Robusta coffee is made from the beans of the Coffea canephora plant, known for its strong, bold flavor and higher caffeine content compared to Arabica coffee. It typically has a more bitter taste and a thicker crema, making it popular in espresso blends and instant coffee. This type of coffee is primarily grown in regions with lower altitudes, such as parts of Africa and Southeast Asia. Robusta plants are hardier and more resistant to pests and diseases, which allows them to thrive in various climates, contributing to their widespread cultivation.