Fever-Tree is a producer of premium drink mixers. Charles Rolls & Tim Warrillow researched quinine sources from as far back as 1620 trips to find the purest strains of this key ingredient and 5 iterations of the recipe were tasted before Charles and Tim were happy with the result.###Product DescriptionDeliciously refreshing and perfect for summer, Fever-Tree\'s Sweet Rhubarb & Raspberry Tonic is a must-try.Made with real fruit juices and extracts, this delicious tonic has a light and refreshing taste that\'s perfect for enjoying on a hot summer day. Mix it with your favourite spirit for a delicious cocktail, or enjoy it on its own for a refreshing treat.Fever-Tree\'s Sweet Rhubarb & Raspberry Tonic is the perfect way to add a little something special to your summertime drinks. So don\'t wait, stock up today and enjoy all summer long!