Coffee Wallpaper

Beau fond d'écran Café Graphiques Fond HD gratuit!

Coffee is a brewed drink prepared from roasted coffee beans which are the seeds of berries from the Coffea plant. The genus Coffea is native to tropical Africa (specifically having its origin in Ethiopia and Sudan) and Madagascar the Comoros Mauritius and Réunion in the Indian Ocean. The plant was exported from Africa to countries around the world and plants are now cultivated in over 70 countries primarily in the equatorial regions of the Americas Southeast Asia India and Africa. The two most commonly grown are the highly regarded arabica and the less sophisticated but stronger and more hardy robusta. Once ripe berries are picked processed and dried. Dried coffee seeds are roasted to varying degrees depending on the desired flavor. Roasted beans are ground and brewed with near-boiling water to produce coffee as a beverage.

Coffee is slightly acidic and can have a stimulating effect on humans because of its caffeine content. Coffee is one of the most popular drinks in the world. It can be prepared and presented in a variety of ways. It is usually served hot although iced coffee is also served. Clinical studies indicate that moderate consumption is benign or mildly beneficial in healthy adults with continuing research on whether long-term consumption inhibits cognitive decline during aging or lowers the risk of some forms of cancer.

The earliest credible evidence of coffee-drinking appears in the middle of the 15th century in the Sufi shrines of Yemen. It was here in Arabia that seeds were first roasted and brewed in a similar way to how it is now prepared. Coffee seeds were first exported from East Africa to Yemen as the coffea arabica plant is thought to have been indigenous to the former. Yemeni traders took back to their homeland and began to cultivate the seed. By the 16th century it had reached Persia Turkey and North Africa. From there it spread to Europe and the rest of the world.

Coffee is a major export commodity: it is the top agricultural export for numerous countries and is among the world's largest legal agricultural exports. It is one of the most valuable commodities exported by developing countries. Green coffee is one of the most traded agricultural commodities in the world. Some controversy is associated with cultivation and the way developed countries trade with developing nations and the impact of its cultivation on the environment in regards to clearing of land for coffee-growing and water use. Consequently the markets for fair trade and organic are expanding.

Cool 3D Pics HD Wallpapers - Good Download Free Pictures - Wallpaper Backgrounds for Mobile Phones.

You can save or share Photos to Facebook, Twitter, Google+, Line.