A citrus blend of tangerine, bitter orange, and lime balanced with the gentle bitterness of quinine. By using a variety of citrus fruits, Fever Tree has created a complex yet delicious tonic water that combines sweetness with a fresh zestiness. Mexican key limes from the Colima and Michoacan region lend a delicate piney edge that balances the rich, fruity flavor of the tangerines sourced from the coastal groves of Veracruz.