Ice Ball Maker
Ice Ball Maker and Spherical Ice Ball Silicone Molds are not used just to impress you. Bartenders and people great at drinking use different types of ice for specific purposes, for the most part. To understand why round ice is used, we can consider something like a whiskey with an ice cube. As you may know, some people like a splash of water in their bourbon, rye, Scotch, Irish whiskey, etc. (it's bigger with Scotch). They say that this brings out the taste. Some people like one or two ice cubes to chill the liquor, and, to dilute it somewhat. Here is the problem. An ice cube chills and dilutes the whiskey, and then keeps on diluting it as it melts.
Round ice helps solve this problem. You see, it's about volume and surface area. A sphere exposes less surface area for the same amount of volume than a cube of ice. So, if you have a cube that is the same volume as a sphere, the sphere will actually have a lot less surface area, over 24 percent less. The less surface area that is exposed to the warm liquid, the slower the ice will melt. Therefore, a sphere of ice will melt more slowly in a drink than a cube of ice. This way, you can chill the drink without quickly diluting it. It's science!