What happens to a beer when it is left uncapped?

Physics, chemistry and biology of brewing. The causes and the effects.

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What happens to a beer when it is left uncapped?

Postby yaturaz » Tue Mar 11, 2008 11:25 pm

I was just wondering if it loses alcohol content or just carbonation.
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Re: What happens to a beer when it is left uncapped?

Postby billvelek » Wed Mar 12, 2008 4:26 pm

yaturaz wrote:I was just wondering if it loses alcohol content or just carbonation.
Both, but not necessarily at the same rate.

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It will go Flat

Postby brewmeisterintng » Wed Mar 12, 2008 4:29 pm

First it will loose it carbonation. Alcohol will evaporate slowly however, it will also turn from beer to bad. :roll:
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What happens to a beer when it is left uncapped?

Postby bfabre » Wed Mar 12, 2008 9:45 pm

Why do you ask? It has to be more than just curiosity. Come on fill me in.
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bad beer

Postby yaturaz » Thu Mar 13, 2008 2:23 am

I was just wondering and thank you all for your replies. The reason for the question is I get to drinking and every once in a while I misplace a freshly opened beer and the next morning I find it full and I really hate to waste my home brew. I was telling someone about my drunken beer misplacing and they were saying that the alcohol content of the beer is greatly reduced after it has been out uncapped exposed to oxygen. I just wanted to know how bad the beer was.:p
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Re: bad beer

Postby billvelek » Thu Mar 13, 2008 11:52 am

yaturaz wrote:... every once in a while I misplace a freshly opened beer and the next morning I find it full and I really hate to waste my home brew. ...
If you would pour it into glass like you really should ... especially with bottle conditioned homebrew ... then it would be difficult to misplace, i.e., a single glass can't get lost in a forrest of empty bottles. ;-) ... and if you are misplacing glasses of beer, then you aren't being serious enough about your drinking. :-p

Cheers.

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Re: bad beer

Postby cozrulz » Thu Mar 13, 2008 1:18 pm

yaturaz wrote:I was just wondering and thank you all for your replies. The reason for the question is I get to drinking and every once in a while I misplace a freshly opened beer and the next morning I find it full and I really hate to waste my home brew. I was telling someone about my drunken beer misplacing and they were saying that the alcohol content of the beer is greatly reduced after it has been out uncapped exposed to oxygen. I just wanted to know how bad the beer was.:p


Why don't you try it the next time this happens? It probably is still good enough and you'll get a beer in at breakfast. :lol: Of course don't try this with a BMC. :lol:

Like bill says get a glass and be serious about your drinking.
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My Two Cents

Postby brewmeisterintng » Thu Mar 13, 2008 5:57 pm

I wasn't going to chime in but I think Bill hit the nail on the head. I believe that most homebrews do it because the enjoy producing a quality product. Brewing to get hammered isn't logical. Why waste your time, there are a number of cheap products on the market that will do the job. I don't no of many home brewers who would drink from the bottle. You would miss the pleasure that the nose provides.
I think an internal look is in order here. Why do you brew?
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Postby yaturaz » Thu Mar 13, 2008 9:29 pm

I do poor my home brew into a glass, also when I drink to get screwed up I drink a few of mine and then some cheap beer to finish the night. I guess it is really bad when you can't find your freshly pored "glass". I left it on the fence outside :P
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My Two Cents plus two more

Postby bfabre » Thu Mar 13, 2008 9:31 pm

I don't no of many home brewers who would drink from the bottle
Strait shooting brewmeisterintng I have to second that. I use a glass to fulfill the senses.
Sight-love looking at the color
Smell-find myself dipping my nose over the glass to get a smell of the aroma all the time
Taste-drinking from a bottle tends to slow down the flavor, at least for me.
Being able to endulge your senses gives me a greater feeling of accomplishment and pride.
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I agree with him^

Postby yaturaz » Fri Mar 14, 2008 12:13 am

When I give a beer away I tell them to pour it in a clear glass and tell me what you think. lol.

I wish I would have read over my last post before I submitted it :oops: *pour* I can't spell for !@#$, but that is just embarrassing.
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I agree with him

Postby bfabre » Sat Mar 15, 2008 1:39 pm

I can't spell for !@#$, but that is just embarrassing.

The public school system failed me too.
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Postby beerthirty » Wed May 14, 2008 9:56 pm

public school didn't fail me, thats where i learned to love beer! but aside from it going flat( I always take a taste after fermentation) how long would it take to oxidize the flavor?
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