At the risk of exposing my ignorance I wanted to comment just based on common sense from the previous postings. As I understand it, the aging process is a chemical process and in that chemical process (as in others) one or more ingredients gets used/transformed/destroyed whatever verb you want to use.
As such, it seems that each cigar blend will have its own limitation on aging. When it runs out of ingredients (in sufficient quantity) to support the chemical change it will first slow down and then eventually, stop.
So some blends may age for longer periods than others, all other factors being equal. So a generalization of 5-7 years may be an expression of the average ageing time before the components become sufficiently depleted to begin slowing the process. Obviously if this is the average, some smokes age much longer and others much shorter periods. It may never fully stop in our lifetime, just become undetectable.
Bob
DogWatch Cigar Radio
www.dogwatchsocialclub.com
Bob,
You perceive too well to consider yourself ignorant on this topic.
Chemical processes are involved, however, the overall picture is quite a bit more complicated than the simple one-way reaction which is the model most non-chemists hold in mind. In reality, there are aerobic (needs the presence of oxygen to proceed) as well as anaerobic (which can occur in the absence of oxygen) reactions. Some of these complex reactions are often multistep and partially reversible. Furthermore, there are reactions which create good things and others which destroy other good things (meaning primarily flavor components) and these are going on concurrently.
In the ultimate sense, once creation of good things has reached completion and the destruction of these and other good things accelerates, we can say that a cigar has peaked and is declining. However, prior to that point, there can be a number of mini-plateaux where the beneficial reactions have resulted in a particular stage of maturational finesse.
I suspect you are right on target in saying that each blend will have its specific reservoir of starting ingredients. This much cannot be manipulated. I do believe that the point of manipulating aging conditions, though, is to optimize the effect of the beneficial reactions over that of the detrimental reactions. Since oxygen supports both "good-making" and "good-breaking" reactions, reducing the access of the cigars to an excess of fresh air will certainly slow down all the aerobic reactions and change the aerobic/anaerobic balance. I cannot say for sure that one category provides more than the other in terms of good versus bad reactions, but things will definitely happen more slowly in addition to happening differently.
Sorry. Reading back on what I've written gives me the sense that I've made things even more confused.
Wilkey