I have used some that is 6+ years old with no real issues. I tasted it before I used it though.
always this. I also will taste a new grain if I've never used it before. I tasted some of the optic before I dumped it in the bucket. I think drez is right that it's going to not be much diff than 2-row. kind of disappointing that it wasn't something more since it's all "old timey UK floor malted heirloom artisinal barley". maybe it will end up being something more? I guess I'll find out.