This is the best use for rocks I have ever seen! Pet rocks have nothing on whisky rocks! I was given these whisky rocks as a senior gift from a respected fraternity advisor and I am forever grateful. I never thought I would get so excited about a couple square rocks...Anyway, they are a great gift for any whisky lover and most importantly, they actually work.
What you do is freeze them for around 3 to 4 hours before your tasting session. You then place them in your glass for around 10 minutes. They make a noticeable difference in the temperature of your whisky, without diluting or shocking the liquid from melting ice cubes. They are pretty effective and keep the chill for quite some time. Plus, they look really neat in your glass! The only thing I ran into is that I use Glencairn nosing glasses and it starts to get a little cramped in the glass. If you are using traditional low ball glasses or whisky tumblers, they will work great. Overall, I am very impressed and thought that every whisky connosuer should own a bag of rocks! Remember ice melts, whisky rocks!