Originally Posted by p_froes
I never said that it ages the same way as it does in the barrel. What I'm saying is that it changes in the bottle.
No whiskey DOES NOT
change in the bottle. What changes is the newer whisky. The barley or other grains are the not same as the grains used back then.
If you opened the bottle in question 23 years ago and then opened the same bottle today it will be the same.
However a 2009 bottle of a Macallan 12 yr will have slight differences when compared to a 2010 bottle of Macallan 12yr because the different years.