There are many different varieties of coffee, primarily categorized into two main species: Coffea arabica and Coffea canephora, commonly known as Robusta. Arabica beans are known for their smooth, mild flavor and higher acidity, making them popular among coffee enthusiasts. They are typically grown at higher altitudes and require specific climate conditions. Robusta beans, on the other hand, have a stronger, more bitter taste and contain more caffeine. They are hardier and can thrive in lower altitudes and harsher climates. Each variety contributes unique flavors and characteristics to coffee, influencing how it is brewed and enjoyed around the world.