With a unique citrus taste, Fresca is a caffeine-free soft drink that appeals to discriminating adults. Fresca was introduced in the United States in 1966 as a calorie-free grapefruit-flavored drink. Its bubbly, crisp, light taste provides a flavorful beverage to consumers who want great citrus taste in a calorie-free soft drink. Fresca is sweetened with sugar in some parts of the world. Sparkling Flavored Soda Surprisingly Complex