FRESH 20oz What the Fanta Zero Sugar Mystery Flavor!! The new “What the Fanta” campaign is kicking off with this mystery “Blue” Zero Sugar Soda in 20-oz. bottles. If you want to taste this mystery drink out for yourself, then it will be available now through February 2023 across 20-oz. bottles, Coca-Cola Freestyle fountain dispensers, and frozen formulations. It looks like even more colors, flavors, and mysteries are coming from Fanta in the next few months so keep your eyes peeled. Be sure to taste and see what all the fuss is going to be about and find clues to solve the mystery flavor at #WhattheFanta. Our opinion is the taste is Orange Creamsicle. At least a cream base. Leave us a review of your flavor opinion on the review tab.