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Old 12-20-2009, 04:56 AM   #21
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Quote:
Originally Posted by Ohio-Ed View Post
The problem is that when pressurized glass vessels break, they do so catastrophically, with glass shards and shrapnel. As I have said repeatedly... growlers are designed and made to hold carbonated beverages... If you choose to add co2 pressure beyond that point you are pressing your luck. It might well hold up to the pressure and you may not have any problem... But drop a pressurized growler on a tile floor and watch what happens. I highly disagree with the idea of suggesting to a novice that they modify a growler to add co2. There is a simple solution... use a PET bottle.
What I'm saying, is that if your keg is pressurized to, say, 10 psi, and you want to dispense that into a growler, you could fill the growler and cap it without pressurization, and it will pressurize itself to about 10 PSI. Or, you can pressurize it with 10 PSI using a CO2 tank before it gets capped, so it's pressurized from the get-go. In the end, the bottle sees essentially the same pressure.
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Old 12-20-2009, 04:59 AM   #22
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the simplest way to keep the beer from going flat: drink it faster! other than that, i can't help you.

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Old 12-20-2009, 05:18 AM   #23
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Reese is correct. Once a bottle of carbonated beverage is capped, CO2 will come out of solution to pressurize the headspace until it reaches an equilibrium. With a small amount of headspace, the pressure is going to be just a tad lower than the serving pressure the keg was at. It's just basic physics, folks.

The cheap solution to the $135 regulator (bad a$$, BTW) is simply a relief valve plumbed into the pressurization fittings. You could use those cheap brass adjustable ones from McMaster that guys are using as spunding valves for pressurized fermentation.


Suthrncomfrt1884,

You've got experience with the growler tap. How does the squeeze bulb thingy attach to the neck of the device? Is there a thread that could be utilized there?

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Old 12-20-2009, 08:17 AM   #24
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You have a capper? Why not just fill 12oz bottles to the top and cap them? If there is no head space there should be min. Co2 that you lose rite? A growler only holds a six pack rite so that should be preaty easy to do. Just a thought

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Old 12-20-2009, 05:59 PM   #25
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Originally Posted by GNBrews View Post
Reese is correct. Once a bottle of carbonated beverage is capped, CO2 will come out of solution to pressurize the headspace until it reaches an equilibrium. With a small amount of headspace, the pressure is going to be just a tad lower than the serving pressure the keg was at. It's just basic physics, folks.

The cheap solution to the $135 regulator (bad a$$, BTW) is simply a relief valve plumbed into the pressurization fittings. You could use those cheap brass adjustable ones from McMaster that guys are using as spunding valves for pressurized fermentation.


Suthrncomfrt1884,

You've got experience with the growler tap. How does the squeeze bulb thingy attach to the neck of the device? Is there a thread that could be utilized there?

Unfortunately, no threads. Basically all the bulb consists of is a stainless steel rod extending into the rubber ball. There's a little lip to hold the ball on, but nothing fancy. I bet it you utilized the same design of the Poor Man's Bottle filler, only backwards...it might work. Get a big rubber stopper...insert a stainless racking cane. Somehow insert a shut off valve on the racking cane to stop liquid flow. Then have some sort of co2 delivery system running through the stopper into the growler. If you let off pressure by pouring a pint before you hit it again with co2, you'll probably be fine.

Might be an issue keeping the stopper from flying out though...
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Old 12-20-2009, 06:46 PM   #26
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this is not a reccomendation on pressurizing growlers which can be dangerous if done incorrectly. but this link might be what the op was looking for http://home.chattanooga.net/~cdp/3lkeg/3lkeg.htm

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Old 12-20-2009, 08:30 PM   #27
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Very cool find!

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Old 12-20-2009, 09:11 PM   #28
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Originally Posted by Wayne1 View Post
While I do not know of any way to keep a growler from going flat, other than drinking it quickly , one thing that might work for your dad is to pick up a Party Pig from a brewpub that sells them.



These are not quite the same things as used by homebrewers. These are sold to brewpubs and micros only. They are thinner plastic and are designed not to be re-filled. They are quite convenient and easy to use..


For the pub selling beer in them they have to be made cheaper, the ones online are close to fifty apiece. I had four, that I bought online (gave them away after I started kegging). They work, but hard to get the pack to pressurize, I started using my compressor. What came with it was a foot ball, you had to open valve put hose in and hold it so tight while stomping on foot ball. Real pain! Then it seemed if you didn't use those packs fast enough,or recieve older ones in your shipment, they would not inflate fully. Your beer was then wasted from not being pressurized.

Would not recommend Party Pigs for bottling, I told the guy I gave them to about the problems, he was just getting started with HBing. I charged him nothing for them, I used them for over a year (paid 200 bucks after extra activation packs).
here is the link:

http://partypig.com/doodads.html

However, if the pub guarantees the pig to empty correctly, go with the pigs, they take up little space hold a case, when they work correctly they are great!

Last note, I agree with ED that little CO2 bulb will almost push a whole five gallon carboy (I have the set up). I believe it just might make a bomb out of a growler. Just my opinion, be careful.

I have a home made setup for a beer gun, I dial it to three or so pounds. I do not think 3 to 5 lbs. of pressure would break a growler. I would wrap it in a towel and look for cracks very carefully the first few times.
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Old 12-21-2009, 01:53 AM   #29
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I also have the same co2 injector. It takes me around two cylinders to push an entire 5 gallon batch out. I'm not suggesting that anyone should use an entire cylinder on a growler...that's insane!

At the same time...all this talk about it being dangerous is a given. We all know the risks...and it's not like I'm going to be throwing this thing around like a football when it's fully pressurized. I'm not too worried when the seller says it withstands 58psi and I've only loaded my beer with 12-15psi....

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Old 12-21-2009, 02:33 AM   #30
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that sounds like the DOT rating working pressure 2x the actual pressure and hydroing at 3x actual

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