coffee

Coffee is a brewed drink prepared from roasted coffee beans, the seeds of berries from certain Coffea species. From the coffee fruit, the seeds are separated to produce a stable, raw product: unroasted green coffee. The seeds are then roasted, a process which transforms them into a consumable product: roasted coffee, which is ground into a powder and typically steeped in hot water before being filtered out, producing a cup of coffee.

Coffee is darkly coloured, bitter, slightly acidic and has a stimulating effect in humans, primarily due to its caffeine content. It is one of the most popular drinks in the world, and can be prepared and presented in a variety of ways (e.g., espresso, French press, caffè latte, or already-brewed canned coffee). It is usually served hot, although chilled or iced coffee is common. Sugar, sugar substitutes, milk or cream are often used to lessen the bitter taste.

https://en.wikipedia.org/wiki/Coffee