- Adding ice will "freeze" the scotch aroma and flavors, dulling the taste of the drink.
- As the ice melts, the water will dilute the scotch, and with it, its true flavor.
However, it is also true that scotch is an acquired taste. For most beginners, drinking scotch neat may simply be too harsh and over-powering. This is fairly common, and there is no shame in adding one or two ice cubes in this case to help smooth the drinking process and make it more enjoyable.
If you find yourself drinking your scotch with ice cubes, do consider enjoying it without ice. It may be rough the first few tries, but I believe that once you get past that initial stage, you will be getting more out of your scotch and enjoying it a lot better.