• We have a new forum and it needs your help! Homebrewing Deals is a forum to post whatever deals and specials you find that other homebrewers might value! Includes coupon layering, Craigslist finds, eBay finds, Amazon specials, etc.

How much co2 to force carbonate?

HomeBrewTalk.com - Beer, Wine, Mead, & Cider Brewing Discussion Community.

Help Support Homebrew Talk:

BootstrapBill

Well-Known Member
Joined
Mar 4, 2012
Messages
114
Reaction score
4
Location
Chico
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?
 

carlisle_bob

Well-Known Member
Joined
Apr 28, 2012
Messages
1,205
Reaction score
30
Location
Carlisle
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
 
OP
B

BootstrapBill

Well-Known Member
Joined
Mar 4, 2012
Messages
114
Reaction score
4
Location
Chico
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.
 

evandena

Well-Known Member
Joined
Dec 12, 2011
Messages
813
Reaction score
19
Location
Madison
BootstrapBill said:
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.
 

gyropilot1

Well-Known Member
Joined
May 16, 2011
Messages
116
Reaction score
4
Location
humacao
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
 

day_trippr

COVID-19 Chum
Joined
May 31, 2011
Messages
31,710
Reaction score
12,710
Location
Stow, MA
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!
 

cigarsmoker75

Member
Joined
Jun 19, 2012
Messages
19
Reaction score
0
You shouldn't keep the co2 tank in the cooler. Cold temperatures chances the gas rate dropping your psi.
 

Cervezero1960

New Member
Joined
May 27, 2015
Messages
3
Reaction score
0
Wow, I see some ignorant and ill advice on this blog, like not to keep the CO2 tank in the cooler and others. Plain and simple, 30 PSI for 24 hrs, 20 FOR another 24 hrs (adjust if necessary), then bring it down to 5-12, keep it there and serve. Cheers !
 

Kee

Supporting Member
HBT Supporter
Joined
Oct 4, 2013
Messages
4,504
Reaction score
3,945
Location
Deep East Texas
Wow, I see some ignorant and ill advice on this blog, like not to keep the CO2 tank in the cooler and others. Plain and simple, 30 PSI for 24 hrs, 20 FOR another 24 hrs (adjust if necessary), then bring it down to 5-12, keep it there and serve. Cheers !
Mistaken advice usually gets corrected in a timely manner on HBT as it did in this thread (it is not a blog BTW). Usually without words such as "wow" or "ignorant".
 

day_trippr

COVID-19 Chum
Joined
May 31, 2011
Messages
31,710
Reaction score
12,710
Location
Stow, MA
Yeah, that's totally a rookie mistake.
And you hate to see that...

Cheers!

[edit] not to mention providing a sketchy "solution". "Bring it down to 5-12"? What's that all about?
 
  • Like
Reactions: Kee
Top