It's also a pretty good natural bandage for scrapes and burns that are sensitive to exposure to air. The antiseptic qualities of honey keep it from going bad pretty much forever. The key is moisture content. If you add water to it or leave it unsealed in a humid place, it can end up moist enough to ferment or spoil. There is nothing at all wrong with granulated honey.
Granulation is nothing more than sugar turning to it's crystaline form.
I actually prefer table honey in this form. When you spread it on bread, it stays put much better than liquid honey and tastes no different. Be careful though. And the more you heat it, the faster its delicate flavor breaks down. Here's a link to the beekeeping menu .