The secret behind Gammel Dansk's unique bitter flavor comes from the mixture ratio of the 29 different herbs, spices and flowers, which include angelica root, nutmeg, aniseed, ginger and rowanberries. After the ingredients have been processed and mixed in the right proportions, they are left to relax in 96% pure alcohol for three months before water is added and the alcohol percentage drops to 38%. The final product is then tapped into bottles, ready to be enjoyed.