Liquid honey does not expire. The sugar
content is so high that it kills almost all bacteria and the moisture content is too low to allow fungus to grow. It can crystallize and become solid and chunky, but you can add 1% distilled water
it and it will become edible again. However, it can still be dangerous for infants to eat. Honey can actually be a preservative, and scientists found honey in pyramids in Egypt and were amazed because it didn't expire, even after thousands of years.