Yeah these things aren't designed to cool things down, they're designed to take something that's already chilled, but in an inconvenient location (such as in yo

Yeah these things aren't designed to cool things down, they're designed to take something that's already chilled, but in an inconvenient location (such as in your kitchen, past a sleeping infant), and keep it cool in a more convenient location (your home office). Anyway if you want to check your math, I did a quick experiment. My fridge cooled a 1.5 liter bottle of room temperature (25.6 C) tap water to 18.4 C in one hour, and 11.9 C in 2.