What fuels America? Coffee, and nearly two cups per day, at least according to a survey conducted by the National Coffee Association. Furthermore, the World Population Review ranks the U.S. as number one in the world for coffee consumption. According to that NCA data, drip coffee is still the most popular choice at 41%, but cold brew, which busted onto the scene and smashed iced coffee from its frosty throne, is gaining momentum by usurping espresso as one of America's most highly consumed coffee beverages.