Tourism may be Florida's biggest industry, but citrus is second, according to the Florida Citrus Commission. Florida produces about 50 percent of all grapefruit grown in the world, and about 80 percent of U.S. grapefruit.

Originating in the West Indies, grapefruit were introduced to Florida in 1823 by Count Odet Phillippe, a great-grandnephew of King Louis XVI and a close friend of Napoleon Bonaparte. Floridians first used grapefruit juice as a refreshing tonic; they thought it useful in the treatment of flu and other illnesses.