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Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Confirming actual CO2 in the tank
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Old 02-19-2013, 03:51 AM   #1
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Default Confirming actual CO2 in the tank

I'm not a trusting person and the shady gas people have me concerned. Is there a trick to confirm CO2 versus just plain air?


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Old 02-19-2013, 03:54 AM   #2
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The tare weight(weight of the bottle) will be stamped on the bottle somewhere. Weigh the bottle, a 5 pound bottle should weigh 5 pounds more than the tare weight


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Old 02-19-2013, 12:58 PM   #3
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I understand that but how can i tell of they put in co2 vs air?
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Old 02-19-2013, 01:18 PM   #4
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You can't dissolve air into water into appreciable quantities..only CO2 can be dissolved into (by forming carbonic acid).

So if you hook up your keg and it gets carbonated; you have CO2.

I guess you could have a naturally carbonated keg and a tank of air could be used to push that beer out for dispensing...in this case you'll know its air if it skunks.

Why do you think its air and not CO2?
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Old 02-19-2013, 01:34 PM   #5
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Fill a dry cleaning bag from the tank and then stick your head in there. If you start to pass out, it was CO2...

Cheers!
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Old 02-19-2013, 01:42 PM   #6
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But if you pass out too soon you might die so it's a more responsible idea to do it with one of your children. If you don't have children you could try with your sister's baby. Babies might also fit better in dry cleaning bags.
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Old 02-19-2013, 02:49 PM   #7
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Stop going to shady gas people and go to a reputable firm instead.

Problem solved.
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Old 02-19-2013, 03:03 PM   #8
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Quote:
Originally Posted by craigkelker View Post
I'm not a trusting person and the shady gas people have me concerned. Is there a trick to confirm CO2 versus just plain air?
Used to have a friend like this, always thought i was shafting him, taking advantage, or thought i was making him look bad.

Cant completely be a d-bag and not trust anyone, do you trust your family, your spouse?

Also...what makes these people "shady"
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Old 02-19-2013, 03:04 PM   #9
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Quote:
Originally Posted by craigkelker View Post
I understand that but how can i tell of they put in co2 vs air?
CO2 is liquid and therefore has weight. Air can be pressurized , but it won't add weight to the bottle. But seriously how long could a place stay in business selling air as CO2?
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Old 02-20-2013, 01:40 PM   #10
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Jokes aside, inflate a plastic bag with the disputed CO2, insert a BBQ lighter through the hole, try to light the flame.

If there's no way to light it up, it's CO2...

but anyway that's all kind of paranoid...


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