When we were going through Kentucky, I picked up a bottle of Elijah Craig 12 Year. It was delicious and I loved it, but I was worried that I wouldn’t be able to find another bottle up north. Well, I did. Problem is…well, it doesn’t taste right. Maybe I’m just not remembering what my first bottle tasted like, but I swear this bottle has a much more…I dunno, unpleasant taste than the bottle I got down south. Is that crazy? It seems like a small enough bottler that there might be differences between batches, but honestly, I don’t really know what I’m talking about.
It probably just skunked a little. (Light + heat) x time = not alcohol’s friend.
[edited for math nerdiness, and still probably not entirely right]