How Old is That Coffee at the Office? A Quick Way to Tell

Let's be honest: the coffee in the average office break room is mediocre, at best. But, usually, we can muscle through the taste in the name of getting our precious caffeine. But if that same mediocre coffee has been sitting out all morning, then the taste slips into a whole new realm of unpleasant. So the next time you brew a fresh pot for the office, take an extra minute to make one of these...

Seriously, it just takes a couple cups and a marker, and you'll never have to deal with burned, bitter coffee again!