I’ve been meaning to buy one of these for the better part of a year. But Dr. Drang points out that while big ice cubes dilute your drink more slowly, they don’t actually cool your drink as fast as smaller cubes.
Yes, big cubes melt (and therefore dilute your drink) more slowly, but at the cost of cooling your drink more slowly. How much more slowly?
[The recommended big cubes] cooled a glass of room temp water by 26.8 degrees in 10 minutes, diluting it by 26 grams.
… Using the same 100 grams of ice but in two cubes instead of one giant one, the small ice cubes cooled the drink the most (28.5°) and also diluted the drink the most (28 grams).
Though I am a gentleman, and gentlemen don’t turn down Star Wars novelties.