By the 16th century, it had reached the rest of the Middle East, Persia, Turkey, and northern Africa.
Roasted beans are ground and brewed with near-boiling water to produce coffee as a beverage.
Upon drinking the liquid Omar was revitalized and sustained for days.
As stories of this "miracle drug" reached Mocha, Omar was asked to return and was made a saint.
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.
Some controversy is associated with coffee cultivation and the way developed countries trade with developing nations and the impact of its cultivation on the environment, in regards to the clearing of land for coffee-growing and water use.