Honey is one of the few everyday foods that truly never spoils. Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible. Honey's eternal shelf life is due to its unique chemistry: it is very low in moisture and highly acidic, creating an environment where bacteria and fungi cannot grow. Furthermore, bees produce an enzyme called glucose oxidase that they mix into the nectar. This enzyme breaks down into gluconic acid and hydrogen peroxide, which acts as a natural preservative. While honey may crystallize and turn solid over time, this is a physical change, not a sign of spoilage. It can be turned back into a liquid by gently warming the jar.