Originally Posted by Gretchen
You know, I am have a biochemistry major and while what you are saying is interesting and gives me pause, I don't think that is correct. The alcohol will vaporize and part of it turn to water, I believe , but it cannot recombine into alcohol.
You know how a still works? Isn't this a similar situation? The alcohol evaporates at 78.5 degrees centigrade, but does not undergo a chemical change; it simply turns to vapor. In the still, the alcohol is condensed by cooled coils and decanted into a different container, concentrating the alcohol. In the slow cooker the alcohol evaporates, and when it reaches the relatively cool lid, it condenses and rejoins the cooking liquid, only to evaporate again. Please feel free to enlighten me if I am wrong. It won't be the first time!