Science Proves It: Koozies Keep Beer Colder

Climate scientists at the University of Washington have made a major discovery in the keeping-beer-cool department. But actually, any of us koozie enthusiasts already knew this one: koozies actually do keep your beer (or other cold canned drink) colder for longer. The important part is why. The researchers studied how much of an effect the water droplets that collect on the outside of the beverage -- condensation -- have on the temperature of the can. The effect is huge: the formation of those d...