How much co2 to force carbonate? - Home Brew Forums
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Old 06-05-2012, 10:52 PM   #1
BootstrapBill
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I am currently force carbonating my kolsch which is being carbonated at 13 psi at around 42-45 degrees. How much psi should I expect to lose over the next couple of weeks. And is it necessary to put sealing tape around your male attachment on your co2 tank if you have a plastic washer in the female side of the regulator?


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Old 06-05-2012, 11:09 PM   #2
carlisle_bob
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Hi

Assuming you have a regulator that is working correctly - you should loose no PSI at all. You will wind up at 13 PSI just like it is now. The PSI in your tank (likely up around 800 or so) will only drop off right as the tank empties. It's got liquid CO2 in it. The stuff boils to keep the pressure up. The pressure only drops when you run out of liquid.

Yes a washer between the CO2 tank and the regulator is a good idea. The same goes for a washer between the regulator and a flare fitting on the regulator (if you are using flares). At the keg coupler (if it's a commercial keg) you would have another washer. With a Corny keg - no washer at the keg post / yes washer if the bidding goes on with a flare fitting.

Tape / goo / what ever is a good idea on any pipe thread to pipe thread fitting. If there is a washer or gasket involved then no tape or goo is needed. The washer serves the same purpose as the tape or goo.

Bob



 
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Old 06-05-2012, 11:18 PM   #3
BootstrapBill
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Thanks, I was just wondering how much of your tank it will use up during the process. I was sitting at around 800 with a full tank and it is at around 700 now after 4 days.
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Old 06-06-2012, 04:40 AM   #4
evandena
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Quote:
Originally Posted by BootstrapBill
Thanks, I was just wondering how much of your tank it will use up during the process. I was sitting at around 800 with a full tank and it is at around 700 now after 4 days.
Those numbers really don't mean anything, if you hear liquid in your tank, then you still have co2 left.
On average, you can force carb and serve 1 keg per pound I co2. That's conservative, most can do 7 kegs on a 5 lb tank.
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Old 09-02-2012, 12:16 PM   #5
gyropilot1
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the question I have the time spand. I am having problem on droping the cooler below 40. so I have use 10,15 20 even 30 pounds. and after 7 days still I can not get above 1.8 on CO2 content. what I am doing wrong

 
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Old 09-02-2012, 03:47 PM   #6
day_trippr
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Quote:
Originally Posted by gyropilot1 View Post
the question I have the time spand. I am having problem on droping the cooler below 40. so I have use 10,15 20 even 30 pounds. and after 7 days still I can not get above 1.8 on CO2 content. what I am doing wrong
How are you determining "CO2 content"?

For a typical brew holding at 40░F, 12-13 psi should provide just about perfect carbonation, given sufficient time (like ~2 weeks)...

Cheers!

 
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Old 09-03-2012, 03:22 PM   #7
gyropilot1
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I have the co2 tank inside the cooler



 
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Old 09-03-2012, 03:48 PM   #8
cigarsmoker75
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You shouldn't keep the co2 tank in the cooler. Cold temperatures chances the gas rate dropping your psi.

 
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Old 09-03-2012, 05:10 PM   #9
zachattack
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Quote:
Originally Posted by cigarsmoker75 View Post
You shouldn't keep the co2 tank in the cooler. Cold temperatures chances the gas rate dropping your psi.
No... it'll drop the tank pressure but that's irrelevant. Most of us keep the co2 tank in the keezer, it's not a problem.

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Old 12-22-2013, 10:45 PM   #10
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