I know they say bourbon ages in the barrel but the recent thread about mixtures “aging” in the bottle got me thinking and now I’m wondering if a sort of bottle aging could occur with unfiltered bourbon if it sat in the bottle for a number of years. Granted it wouldn’t be on the same scale as aging in the barrel but a number of brands have a noticeable amount of char on the bottom of the bottle. I realize that this char is but a very small amount of one layer of the barrel and not the one typically associated with giving the whiskey flavor but it does have plenty of flavor and smell on it’s own.
When I drink one of these bottles and get a little past the point at which I have to tilt the bottle enough to actually get the char moving towards the neck (assuming the char was all settled once when I picked the bottle up) I begin to taste and smell the char more and more with every pour so I figure there is a chance that after a few years this will eventually permanently change the taste of the whiskey at the top. Aging probably is not the best term here but considering the fact that it is barrel char possibly causing this I think it sort of works, assuming this actually happens. Rotted corks and air exposure are two things I know have been said to change the taste and the charcoal filtration for Tennessee Whiskey is said to "jump start" the aging process so I wonder if this could alter it too, for better or for worse. I figured this would have been talked about before, sorry if it has, but a few searches turned up nothing, any thoughts?