Food is a deceptive mistress. Seductive, delicious, but also occasionally steeped in bacteria.

There are rules (such as the five-second one) we fall back on to determine whether to partake in a particular morsel, yet many don't hold up under scrutiny.

For those who've spent hours studying the recently
discovered, yet unidentifiable leftovers hiding in the back of the fridge, here's some advice to keep you from spending days in the bathroom.