The ideal would be to make your ice with mineral water. And the rule number one is to use large ice cubes that have the best cooling/dilution ratio. The purpose of a highball is not to dilute the whisky but rather to bring sparkle and freshness.
The ideal would be to make your ice with mineral water. And the rule number one is to use large ice cubes that have the best cooling/dilution ratio. The purpose of a highball is not to dilute the whisky but rather to bring sparkle and freshness.