When the bees make honey they start with nectar with a high moisture content. They then place it in cell and fan it with wings until the moisture content drops. the "honey" is then hydrophilic, meaning it will draw moisture from anything that comes into contact with it., including any living cell, bacteria, mold, etc. In other words, any organism that might rot the honey is immediately killed by dehydration.
That's why it never goes bad, Truly one of natures most astound materials from an astounding animal.
Cool. Thanks for the info.