This tonic is made by the traditional method, with spring water, Rwanda’s Fever tree quinine, cane sugar, citric acid, orange oil and lemon zest. It is a tonic, not very carbonated, with sparse and small bubbles, and very crystalline. Soft flavor without too much bitterness and little taste of quinine and nothing cloying. Aroma to citrus. Made in Surrey, UK, by Fever Tree Ltd. has acquired remarkable importance to have been recommended by Ferran Adriá to prepare gin tonic, Spain being the country that consumes almost fifty percent of exports.