Why do Americans call coffee Joe?

Answer 1

its just slang....there is no meaning be hind it It seems a couple of other people do not agree. See below. I like these. This appears to be an American phrase, possibly coined from a company in NY named Martinson's Coffee which was owned by a man named Joe Martinson. The whole neighbourhood would have the fantastic aroma of coffee roasting and there came the name a cup of Joe. Possibly, the term started in the US Navy when Admiral Josephus Daniels outlawed alcohol, except for special occasions, so the sailors switched to coffee and asked for a 'cup of Joe'. May even have some trace to Joe Lyon, whose coffee houses were very common at one time. The consumption of coffee increased dramatically in the 30's and 40's. By the end of the 30's, 98% of U.S. families drank coffee in one form or another. World War II addicted millions of soldiers - who often warmed it with something as simple as matches. The American soldier became so closely identified with his coffee that G.I. Joe gave his name to the brew - a Cup of Joe.

Answer 2

Military