Author Topic: Force Carbonation Question  (Read 971 times)

Offline flbrewer

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Force Carbonation Question
« on: May 20, 2015, 09:08:02 PM »
As I've read there is the "set it and forget it" method and the "crank it up and shake" method to force carbonation.

Isn't there a third option to crank up the pressure for 24 hours or so and then set back down without shaking the keg?


Offline tommymorris

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Re: Force Carbonation Question
« Reply #1 on: May 20, 2015, 09:21:05 PM »
Yep. 30PSI for 36 hours then reduce to serving pressure and purge.


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Offline HoosierBrew

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Re: Force Carbonation Question
« Reply #2 on: May 20, 2015, 10:13:18 PM »
Yep. 30PSI for 36 hours then reduce to serving pressure and purge.


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+1.  I go 30psi for 48 hrs for some beers. I still prefer 12psi X 40F X 2 weeks for most beers, unless it's on short notice.

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Offline Frankenbrew

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Re: Force Carbonation Question
« Reply #3 on: May 20, 2015, 10:20:06 PM »
Yep. 30PSI for 36 hours then reduce to serving pressure and purge.


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+1.  I go 30psi for 48 hrs for some beers.

+2 This is exactly what I do, too.
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Offline duboman

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Re: Force Carbonation Question
« Reply #4 on: May 20, 2015, 10:25:43 PM »
I left, set pressure at serving which for me is 10psi and shake for a total of 20 minutes over the course of a day at 38oF and leave it be. Generally in 3-5 days the keg is ready to serve but like most beer it begins to taste best in about 10-14 days:)
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Offline brewday

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Re: Force Carbonation Question
« Reply #5 on: May 20, 2015, 10:59:18 PM »
Yep. 30PSI for 36 hours then reduce to serving pressure and purge.


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+1.  I go 30psi for 48 hrs for some beers.

+2 This is exactly what I do, too.

+3
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Offline Phil_M

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Re: Force Carbonation Question
« Reply #6 on: May 20, 2015, 11:06:28 PM »
I was doing that, but found my beers to be turning out overcarbed. I do the set and forget method, takes a little longer but it's guaranteed success.
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Offline flbrewer

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Re: Force Carbonation Question
« Reply #7 on: May 21, 2015, 05:18:08 PM »
So I'm going w. the set and forget for a first timer...added 25-30 PSI, bled off a few times to purge. Set to 12.5 or so PSI @ 40 degrees.

When I draw some samples off of this next week, should I bleed off any pressure? Not sure if this is a best practice or not.

Secondly, I didn't leave the serving tap attached for now, is that standard as well while carbonating?

Offline tommymorris

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Re: Force Carbonation Question
« Reply #8 on: May 21, 2015, 05:44:33 PM »
You can leave the serving line on during carbonation. You don't need to though.

Offline brewinhard

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Re: Force Carbonation Question
« Reply #9 on: May 21, 2015, 06:11:50 PM »
So I'm going w. the set and forget for a first timer...added 25-30 PSI, bled off a few times to purge. Set to 12.5 or so PSI @ 40 degrees.

When I draw some samples off of this next week, should I bleed off any pressure? Not sure if this is a best practice or not.

Secondly, I didn't leave the serving tap attached for now, is that standard as well while carbonating?

Yes you will need to bleed the pressure before taking a sample otherwise it will be all foam.  Then turn it back up to your desired psi for proper carbing.

Offline flbrewer

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Re: Force Carbonation Question
« Reply #10 on: May 22, 2015, 12:50:07 PM »
Can the higher PSI for 24-48 hours be implemented at any point? I'll be out of town for a couple of days and would like to try this when I return.

Offline Frankenbrew

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Re: Force Carbonation Question
« Reply #11 on: May 22, 2015, 01:56:28 PM »
Sure, but the beer should be chilled first.
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Offline flbrewer

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Re: Force Carbonation Question
« Reply #12 on: May 24, 2015, 08:23:42 PM »
So I'm going w. the set and forget for a first timer...added 25-30 PSI, bled off a few times to purge. Set to 12.5 or so PSI @ 40 degrees.

When I draw some samples off of this next week, should I bleed off any pressure? Not sure if this is a best practice or not.

Secondly, I didn't leave the serving tap attached for now, is that standard as well while carbonating?

Yes you will need to bleed the pressure before taking a sample otherwise it will be all foam.  Then turn it back up to your desired psi for proper carbing.

Will bleeding off and turning down the PSI for a sample impact the overall carbonation? I assume it's the constant pressure over time that carbonates the beer.

Offline tommymorris

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Re: Force Carbonation Question
« Reply #13 on: May 24, 2015, 08:48:28 PM »

Can the higher PSI for 24-48 hours be implemented at any point? I'll be out of town for a couple of days and would like to try this when I return.
No! If the beer has been on gas and then you jack the pressure for 24-48 hours you are likely to over carb. The 24-48 hour is a boost period which is pushing gas into the beer at a higher than normal rate. If the beer is already partially carbed you will likely be pushing beyond a your desired carb level.

Offline flbrewer

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Re: Force Carbonation Question
« Reply #14 on: May 24, 2015, 08:50:49 PM »

Can the higher PSI for 24-48 hours be implemented at any point? I'll be out of town for a couple of days and would like to try this when I return.
No! If the beer has been on gas and then you jack the pressure for 24-48 hours you are likely to over carb. The 24-48 hour is a boost period which is pushing gas into the beer at a higher than normal rate. If the beer is already partially carbed you will likely be pushing beyond a your desired carb level.

It was only carbed at normal PSI for 2 days before I tried this increase. I'm planning on leaving it at 25 PSI for 24 hours and moving it back down.