Based on my research it seems like mead just flat out doesn't spoil, but since I didn't see this specific question here I thought I'd throw it out there to confirm.
I bought a bottle of mead just under a year ago, that I've had sitting in my kitchen since then. Initially it likely spent most of it's time at room temperature, and being exposed to sunlight every day. Then in the summer it would have been exposed to temperatures in the 90's and up for a few weeks.
Before I open it and try it, I wonder if my bottle is likely to be bad? And if not, are there other ways it can spoil?