Ingredients - Carbonated Water, Sugar, Malic Acid, Natural Flavour, Preservatives (Potassium Sorbate, Sodium Benzoate), Blue 1. Tongue twistingly sour, this 355ml can of Warheads Blue Raspberry Sour Soda has a refreshing raspberry flavour with the sour twist that we've come to expect from Warheads. Prepare for lift off with mouth twistingly sour Warheads, setting the standard for sour American candy since 1985. Named Warheads as the sour taste is alike to a warhead going off in your mouth, as demonstrated by the brand's mascot, Wally Warheads. Super sour seekers love this 'extreme' candy with an intense sour flavour, now available in a huge range from Lil’ Worms and Chewy Cubes and a soda drink. That’s why Warheads made our Top 10 Must Try American Sweets.