Sourz is a sweet and sour shot that is the number 1 party shot in the UK. Sourz Rainbow Ice is a fruity and sweet and sour liqueur, with flavours of raspberries, oranges and limes. Don't be sour! - Sourz Tasting notes:Colour: purple. Nose: Fruit bouquet, oranges, limes, raspberries. Taste: Fruity, sweet and sour, notes of raspberries, oranges, limes, sweet apples. Finish: Long lasting. For pre-glow, when partying in the club or at the next flat-sharing party; Sourz convinces as a shot but also as a long drink.