What are those bubbles in my beer?

Brock

I heard alcohol evaporates, also the carbon dioxcide pop does the samething, am I loseing alcohol percentage when I let my beer stand?

chroot

Judging by your typing skills, I'd venture you're still getting plenty.

- Warren

KingNothing

No. It would take a very, very, very long time for any chemical reaction to take place. People often forget that alcohol isn't like other drugs like THC or Ex in which the active ingredient has a very small mass...Alcohol takes up a lot of space. In some spirits (100 proof) the alcohol itself takes up 50% of the volume. Unless your beer is shrinking, I'd say you're safe.

GCT

Most of it is carbon dioxide, ethanol has a considerable vapor pressure so yes, some ethanol is evaporating out of the solution, however not as fast as the carbon dioxide although I wonder just what role carbon dioxide has, if any, in keeping the ethanol in the solution.

ssb

Im pretty sure its carbonated just like soda pop to help slow down the reactions that might occur that would make it taste bad before you had a chance to drink it. Also I think that people prefer the taste of a carbonated beverage over a "Flat" one because it has a taste people relate to "fresh".

I would have to guess that 99.9 percent or so is o=c=o and the other .01% CH3-CH2-OH of what evaporates by the time you drink it. Actually the EtOH is probably a bit higher because i know beer smells really strong sometimes.

I could be wrong though on the first part..... oh look at the time its beer thirty. Time to go drink!