When we discuss the different types of coffee, many variables come into play. True coffee connoisseurs know where their favorite coffees are grown and how they were roasted. Different growing regions affect beans depending on weather conditions, growing season and soil. Two identical trees grown in different regions will produce coffee beans of different qualities and tastes. In many cases, coffees are blended to achieve a specific taste. A true coffee lover will need to understand the differences between beans from specific regions as well as roasting techniques. Arabica vs Robusto In the grand scheme of coffee, Arabica beans are the cream of the crop while Robusto beans are considered more common or lower quality. Here are some differences between the two. ArabicaThese plants are more delicate overall with great sensitivity to temperatures and greater vulnerability to pests. They grow best in the tropics and subtropics, at higher altitudes, usually within 100 miles of the equator. Arabica beans are much tastier than Robusta and roasted beans have a slightly sweet smell. Arabica beans contain slightly less caffeine than Robusta beans. Robusta Robusta plants are hardier and can tolerate less favorable climates and soil conditions. Most of this type of coffee bean is grown in Africa and Asia. This type of bean is considered a daily roast and is used in most brands of coffee found at the supermarket. These beans may smell burnt with a nutty undertone. Many people have compared the smell to burning plastic or rubber. Growing Regions The next thing to consider is the region where the coffee beans were grown. Each region imparts distinct characteristics to the central part of the paper......a living, individual thing. On the other hand, the most expensive coffee in the world must be the best, right? The most expensive coffee in the world is known as Kopi Luwak. This rare coffee comes from beans digested by the Luwak, a mongoose-like animal that lives in the treetops of Indonesia. The luwak eats the coffee cherries and nibbles the outer layer of the fruit. The bean then passes through the animal's digestive tract where subtle chemical changes occur within the bean itself. The beans are then collected from the luwak droppings, cleaned and lightly roasted. The end product is a rich, full-bodied coffee, with no bitterness and just a hint of chocolate and caramel. A pound of this rare coffee bean will cost around $300 per pound. Sure, these specialty coffee brews seem a little more affordable.