Tonic Water masterfully made with quinine since 1783. A timeless classic.The first soft drink can be traced as far back as the late 1700s, when Jacob Schweppe perfected his process for manufacturing the world's first carbonated beverage, mineral water. It contains carbonated water, sugar, citric acid, natural citrus juice and flavorings, potassium sorbate, sodium benzoate, sodium citrate, caffeine, ascorbic acid and tartrazine.