Why is coffee called Joe?
The first known printed reference to a cup of coffee as a cup of joe appears in a book from 1936. The true origin of the name, though, has been lost to history. There are four common theories.
- There was a well-known early 19th-century New York City coffee roaster named Martinson Joe. Cup of Joe may be a reference to his coffee.
- Josephus "Joe" Daniels was the Secretary of the Navy that banned alcohol from U.S. naval ships in 1914. His move made coffee the strongest drink on these ships and may have led to the coffee term: a cup of Joe.
- Joe may be a shortened version of Jamocha (or the related Jamoke), as this was a popular term for coffee in the 1930s.
- The most boring option is that a cup of Joe may be a reference to coffee being the drink of the average Joe.