Although there have been many coffee connoisseurs who came up with the concept of instant coffee, George Washington was one of the early pioneers to find a way to mass-produce it. His company, G. Washington Coffee Company prospered during WW I and was eventually sold to American Home Products in 1943. If you are thinking if he is the same as the first President of the USA, no, his full name was George Constant Louis Washington, born in Belgium.
