There is nothing wrong with adding ice to scotch, writes Kevin Liu at Serious Eats. In fact, a little water can change the flavor profile of the drink for the better. What’s more, chilling your scotch won’t dampen down the aroma. A chilled drink won’t be flinging off scent molecules left and right, but it will warm up enough from your hot breath to get the chemistry of scent where it needs to go — and to give you the flavor experience you want.