The addition of natural lime and ginger flavorings alone may not provide enough sweetness to the drink, so a small amount of sugar is added to create a more enjoyable and well-rounded flavor profile. The sugar helps to bring out the tangy lime and spicy ginger notes, creating a refreshing and slightly sweet taste.
The use of sugar in flavored whiskey is not uncommon. Many brands add sugar to their flavored versions to enhance the flavors and make them more appealing to a wider range of palates. It is a way to create a drink that is not only flavorful but also easy to drink on its own or in cocktails.