Coffee is a drink prepared from roasted
coffee beans. Darkly colored, bitter, and slightly acidic, coffee has
a stimulating effect on humans, primarily due to its caffeine content.
It has the highest sales in the world market for hot drinks.
Seeds of the Coffea plant's fruits are separated to produce unroasted
green coffee beans. The beans are roasted and then ground into fine
particles that are typically steeped in hot water before being
filtered out, producing a cup of coffee. It is usually served hot,
although chilled or iced coffee is common. Coffee can be prepared and
presented in a variety of ways
(e.g., espresso, French press, caffè latte, or already-brewed canned
coffee). Sugar, sugar substitutes, milk, and cream are often used to mask
the bitter taste or enhance the flavor.