The only time I've had KBS was a single bottle from a trade. Not sure what the bottled date was compared to when I shared it with one of my best friends after a turkey hunt. It was very tasty for sure. Would love yo try it fresh it becomes available. With that said, I enjoy BCBS more, even though a single bottle sipped slowly over the course of a couple hours knocks me on my ass, hahaha! Both have a special place though. Drinking this FBS has me ready to do a side by side with KBS!