Where Was Smoothie Invented?
Where Was Smoothie Invented? In 1973, Steve Kuhnau founded the first Smoothie King in Louisiana. Kuhnau, who had been experimenting with smoothie recipes for years, added ingredients such as yogurt, protein powder and vitamins to his smoothies. What was the first smoothie ever made? 1922: Stephen Poplawski files a patent for the drink mixer. 1926: