The hometown of coffee is the plateau area in the southwest of Ethiopia, Africa. Coffee is a drink made by grinding roasted coffee beans into powder. As one of the three major beverages in the world, coffee, together with cocoa and tea, is the main popular beverage in the world.

Never drink coffee on an empty stomach, because coffee will stimulate gastric acid secretion, especially for patients with gastric ulcer. Coffee, as a drink, should be drunk appropriately according to personal circumstances.