Bourbon is a style of whiskey produced in the USA. Aged in new-fill American Oak casks and distilled primarily from corn, it’s full flavoured and sweet. Due to the difference in climate between Scotland the North America, bourbon whiskey matures much faster. By a law that was introduced to protect the financial interests of oak tree farmers, the casks can only be used once. Following this, they are shipped to Scotland for the maturation of Scotch Whisky. 100 years on, the bourbon industry is only just recovering from the damage caused by prohibition. A strongly protected product, bourbon whiskey cannot contain any additives, while Scotch allows caramel colouring.