I've had a few beers sitting around in a deep dark cupboard, left over Xmas gifts from two years ago. They're from a craft brewery situated in a former milk processing plant. I've just finished one brew I shall probably never see again: it was a limited edition special brew two years ago. It's called WHOA, meaning Wet Hopped Oatmeal Ale, a dry golden ale, the hops were harvested on brew day, don't get much fresher than that. No preservatives or chemicals, consisting of only water, malt, hops, yeast & oatmeal.
I'm quite impressed.