Don’t always have time to cook? That’s fine, there are always left overs! Inside Edition wanted to find out just how long leftovers are safe to eat. So we asked Peter DeLucia, the Westchester County assistant health commissioner, for his best advice on fridge staples. DeLucia tested an egg salad from a local mother's fridge, and the results were astounding. After three days, the bacteria in the food had increased by 4,000%. Check out our video to see how other foods fared in the test.