【正文】
coffee Coffee origin Coffee (a etymology from Ethiopia named Kaffa town,which is in ancient Greek ,Kaweh means strength and passion. Tea ,coffee and cocoa are called the world three drinks. Main ingredients ? Caffeine : a special strong bitter taste, stimulates the central nervous system, heart and respiratory system. ? Tannin : boil tannin will resolve into Jiao Wu acid. ? Fat : one of the main is acidic fat and volatile fat. ? Protein : the main source of calories, the proportion is not high. ? Sugar : Coffe