A person holding a glass of whisky
The Only Sugar Content You'll Find When Drinking A True Bourbon
Though the U.S. Code of Federal Regulations doesn't allow a true bourbon to add artificial sugar or flavors, most people characterize this drink with sweet and spicy flavor notes.
After a bourbon's initial alcohol heat fades on your palate, a subtle sweetness emerges. This sweetness comes from the virgin oak barrel in which the whisky is aged.
Per the Scientific Reports journal, sugar is exposed during the oak barrel's charring process, where the heat alters the wood's microscopic structure.
When the newly distilled whiskey is poured in, this sugar dissolves into the spirit, adding a faint sweet note. Except this, no other sugar content is added to a true bourbon.