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Old 04-08-2008, 04:06 PM   #1
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Default Reverse Keg Carbing?

The other night I read about using the method below in a 'How To' manual. I did a search here on HBT and found this post by TexLaw:

Quote:
Originally Posted by TexLaw
... take the keg out, change the gas line fitting to a liquid line fitting, attach the gas line to the liquid post, and shake or roll the keg around (at the "set it and forget it" PSI) until you no longer hear CO2 bubbling up through the beer. That'll get you nearly all the way toward your desired carbonation. Then, remove the gas line from the liquid post, switch the fitting back to the gas fitting, reattach the gas line to the gas post, put the keg back in the fridge, and chill out. ...
I "speed" carbonate all my beers by the procedure in that last paragraph. It saves me a few days waiting or more without overshooting the carbonation I wanted in the first place and going through all the mess to get it back where I want it.

TL
I think this method might work very well, with quicker and with more predictable results than the "set it to 35psi and shake the hell outta the keg" method, which has been disappointing to me. My thought is, as long as you have a check valve in place to keep beer from bleeding into your regulator, it should work like a charm.

Anyone else use this method? (Sorry TexLaw, not meaning to pick on you in case anyone comes back saying, "That's crazy talk!" ):
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Old 04-08-2008, 06:17 PM   #2
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I usually just connect the corny to the gas line - set it to my dispensing pressure - and leave it for 2 - 3 weeks - the brew will be carbed well enough by then.
It also gives the brew some time to "rest" before you drink it.

Kilroy

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Old 04-08-2008, 06:34 PM   #3
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Quote:
Originally Posted by kilroy
I usually just connect the corny to the gas line - set it to my dispensing pressure - and leave it for 2 - 3 weeks - the brew will be carbed well enough by then.
It also gives the brew some time to "rest" before you drink it.

Kilroy
I've tried that. Left it at 10psi for 2-3 weeks and I'm not getting full carbonation. Sure, it dispenses fine and I get a head on it, but after the head dissipates, there are very few bubbles still floating to the surface. That's why I'm trying to come up with other methods.
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Old 04-08-2008, 06:47 PM   #4
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Interesting concept. After 2 1/2 days at 35 psi, my beer doesn't have much carbonation at all. I actually thought yesterday, "what if you carbonated through the dip tube allowing the gas to work it's way up through the beer?"

So is a check valve required or not, doesn't seem like it would make any difference since you are basically just reversing the carbonation path, and the pressure of the gas should keep the beer out of the CO2 line?

If I don't need anything special, I'm going to go home and try this tonight.

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Old 04-08-2008, 07:02 PM   #5
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You can buy a corny lid that has a gas post welded to it and a plastic piece of tubing with a aeration stone on the end. You put it on and the stone drops to the bottom, hook up the gas and it will carbonate up within a day or so depending on temp and pressure. When you get it to the level you want, just change it out with a regular lid and your done.

Would be easier than changing out the hoses on the qd's.

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Old 04-08-2008, 07:12 PM   #6
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Oddly enough and very coincidentally this is used as a means of removing DMS:

http://www.homebrewtalk.com/showthread.php?p=630713

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Old 04-08-2008, 07:43 PM   #7
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This is how I do it.

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Old 04-08-2008, 07:52 PM   #8
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I typically use this method to remove clogged hops from the dip tube, if I'm too lazy to remove the dip tube and flush out the hops.

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Old 04-08-2008, 09:46 PM   #9
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Quote:
Originally Posted by McKBrew
...If I don't need anything special, I'm going to go home and try this tonight.
Let me know how it goes. I won't get a chance to do it tonight, but plan to x'fer my Weizenbock in the next couple of nights and will try it then. It just sounds too easy!
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Old 04-08-2008, 09:50 PM   #10
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I've done this when I've needed to get a keg carbed quickly. It works pretty well and is worth trying.

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