Making cocktails doesn't require any advanced scientific knowledge, but it can help you make better cocktails. Getting your drinks to the ideal temperature and dilution will elevate them, and it can be made a lot easier with a gadget you'll usually find elsewhere in the kitchen.
In the video above, Adam Rogers from the Wired YouTube channel talks with Jennifer Colliau about ice's role in mixology. Cocktails, unsurprisingly, are better when they're cold, and they can even be colder than freezing thanks to the alcohol content.
To reach those ideal temperatures, ice has to dilute and cool the drink down (something we've talked about before). However, it's also important that you don't dilute your drink too much. That's why Colliau suggests using a digital thermometer to stir your drink and see exactly when you reach the ideal temperature.
Of course, the perfect temp will vary from drink to drink (usually between 0 to -2°C), and it may require some experimentation, but the use of a thermometer is a smart way to go about it.
Booze Science [Ice]