Portal:Coffee

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Introduction

A cup of black coffee

Coffee is a beverage brewed 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.

The 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 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 added to mask the bitter taste or enhance the flavor.

Though coffee is now a global commodity, it has a long history tied closely to food traditions around the Red Sea. The earliest credible evidence of coffee drinking as the modern beverage appears in modern-day Yemen in southern Arabia in the middle of the 15th century in Sufi shrines, where coffee seeds were first roasted and brewed in a manner similar to how it is now prepared for drinking. The coffee beans were procured by the Yemenis from the Ethiopian Highlands via coastal Somali intermediaries, and cultivated in Yemen. By the 16th century, the drink had reached the rest of the Middle East and North Africa, later spreading to Europe. (Full article...)

A typical, pump-driven consumer espresso machine

An espresso machine brews coffee by forcing pressurized water near boiling point through a "puck" of ground coffee and a filter in order to produce a thick, concentrated coffee called espresso. Multiple machine designs have been created to produce espresso. Several machines share some common elements, such as a grouphead and a portafilter. An espresso machine may also have a steam wand which is used to steam and froth liquids (such as milk) for coffee drinks such as cappuccino and caffè latte.

Espresso machines may be steam-driven, piston-driven, pump-driven, or air-pump-driven. Machines may also be manual or automatic. (Full article...)
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The following are images from various coffee-related articles on Wikipedia.

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... that coffee production in Puerto Rico peaked during Spanish colonial rule, but was much reduced after the island was annexed by the United States in 1898?
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Raf or raf coffee is a popular coffee drink in some countries of the former USSR, which appeared in the late 1990s. Prepared by adding cream and vanilla sugar to a single shot of espresso and then foaming the mix with a steam heater. The main differences from latte are the use of vanilla sugar and cream instead of milk and the fact that the whole mix is foamed together instead of just milk. Syrup is often used instead of vanilla sugar. (Full article...)

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A coffee plantation in Quimbaya, Quindío, Colombia. View from the road to La Union (Quimbaya), looking south towards Montenegro.
A coffee plantation in Quimbaya, Quindío, Colombia. View from the road to La Union (Quimbaya), looking south towards Montenegro.
Credit: Shaun McRae
A coffee plantation in Quimbaya, Quindío, Colombia. View from the road to La Union (Quimbaya), looking south towards Montenegro.

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Roasted coffee beans
Roasted coffee beans
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