Homebrewers Association | AHA Forum

General Category => Kegging and Bottling => Topic started by: bbump22 on April 29, 2010, 05:49:24 PM

Title: Serving suggestions for Keg
Post by: bbump22 on April 29, 2010, 05:49:24 PM
When carbonating my beer, I keep the temp at 38 degrees and adjust the PSI level to 10.  I will give it at least a week or so, before serving.  When it comes time to serve, it seems like if I don't bleed the keg for each beer I pour, then the beer I pour is almost all head.  Even after I bleed the keg, pour (No problem if I pour immediately after I bleed), wait 10 minutes and pour another beer, I get the same result.  This just doesn't seem right to me...After speaking with the owener of keg connections, I know that my lines are not too long and I have a fan blowing cold air up into the tower to keep the lines at the top cold.  Should I be lowering the PSI when I serve it?

Thanks for any help you can offer. 


Title: Re: Serving suggestions for Keg
Post by: a10t2 on April 29, 2010, 05:59:13 PM
How long are your lines, and what diameter?
Title: Re: Serving suggestions for Keg
Post by: bbump22 on April 29, 2010, 06:07:37 PM
How long are your lines, and what diameter?

5 ft and 3/16 in diameter.
Title: Re: Serving suggestions for Keg
Post by: dak0415 on April 29, 2010, 06:29:27 PM
Check this out!

http://www.maltosefalcons.com/tech/resistive-gate-draft-beer-flow-control

Dave
Title: Re: Serving suggestions for Keg
Post by: bluesman on April 29, 2010, 06:50:28 PM
This is the best resource available. IMHO

http://www.draughtquality.org/f/DBQM_Full.pdf
Title: Re: Serving suggestions for Keg
Post by: rjharper on April 29, 2010, 09:48:04 PM
I've always been a little skeptical of the 2lb per foot pressure drop advertised on 3/16" tubing.  I run 9' lines, and keep my system at 13 psi and 38F.  I have nicely carbed beers and no foam issues (apart from the line beer if its been a while).
Title: Re: Serving suggestions for Keg
Post by: zee on April 30, 2010, 02:35:19 PM
Check this out!

http://www.maltosefalcons.com/tech/resistive-gate-draft-beer-flow-control

Dave

i've been monitoring a bunch of epoxy nozzle tip threads for a while now. rather than putting them inline like this, you can actually just put them in your dip tube, as they slide right in. apparently they work wonders.

BUT

the problem that many threads run into is that these are not certified food safe. a number of people have contacted mcmaster carr, who [smartly] refuses to say anything about the potential hazards of having these things in contact with your beer. they simply say they weren't designed to be food safe, any contact with food is at your own risk. additionally, even if they are made of something benign like hdpe, if they aren't made specifically as food grade hdpe, all bets are off.

you have to consider that every drop of your beer will be in contact with these things, and that alcohol acts as a solvent, leaching out nasty stuff even faster than water will.
Title: Re: Serving suggestions for Keg
Post by: bbump22 on April 30, 2010, 03:17:31 PM
Check this out!

http://www.maltosefalcons.com/tech/resistive-gate-draft-beer-flow-control

Dave

i've been monitoring a bunch of epoxy nozzle tip threads for a while now. rather than putting them inline like this, you can actually just put them in your dip tube, as they slide right in. apparently they work wonders.

BUT

the problem that many threads run into is that these are not certified food safe. a number of people have contacted mcmaster carr, who [smartly] refuses to say anything about the potential hazards of having these things in contact with your beer. they simply say they weren't designed to be food safe, any contact with food is at your own risk. additionally, even if they are made of something benign like hdpe, if they aren't made specifically as food grade hdpe, all bets are off.

you have to consider that every drop of your beer will be in contact with these things, and that alcohol acts as a solvent, leaching out nasty stuff even faster than water will.

great idea, but it sounds like it might not be worth the risk, IMHO.
Title: Re: Serving suggestions for Keg
Post by: mainebrewer on April 30, 2010, 03:49:40 PM
In my setup I find that 7 foot beer lines at 10 PSI works well.
I get a bit of a slow pour and about a half inch of foam in a pint glass of beer.
Title: Re: Serving suggestions for Keg
Post by: zee on April 30, 2010, 08:21:13 PM
In my setup I find that 7 foot beer lines at 10 PSI works well.
I get a bit of a slow pour and about a half inch of foam in a pint glass of beer.

a balanced system requires a number of things:

* temperature
* pressure
* height of tap from center of keg
* line inner diameter
* line length

without knowing ALL of these things you cannot balance your system, so all these posts [sorry to single you out mainebrewer] with just a line length and psi are useless.
Title: Re: Serving suggestions for Keg
Post by: rjharper on April 30, 2010, 09:32:44 PM

a balanced system requires a number of things:

* temperature
* pressure
* height of tap from center of keg
* line inner diameter
* line length

without knowing ALL of these things you cannot balance your system, so all these posts [sorry to single you out mainebrewer] with just a line length and psi are useless.

to keep zee happy :),

temp = 38F +/- 2F
pressure = 13psi
height = 18"
inner dia = 3/16"
length = 9'
Title: Re: Serving suggestions for Keg
Post by: mainebrewer on May 03, 2010, 12:23:00 PM
Zee, no problem, my response was lacking in detail but was based on the assumption that most people use corny kegs, 3/16" tubing and 38-40 degree temps.
For the record, my setup is:
7' 3/16 tubing,
whatever height a corny is (25"?).
38-40 degreees,
10-11 PSI

Title: Re: Serving suggestions for Keg
Post by: bbump22 on May 12, 2010, 03:02:00 PM
In my setup I find that 7 foot beer lines at 10 PSI works well.
I get a bit of a slow pour and about a half inch of foam in a pint glass of beer.

a balanced system requires a number of things:

* temperature
* pressure
* height of tap from center of keg
* line inner diameter
* line length

without knowing ALL of these things you cannot balance your system, so all these posts [sorry to single you out mainebrewer] with just a line length and psi are useless.

How does the height of tap from center of keg play a role?
Title: Re: Serving suggestions for Keg
Post by: a10t2 on May 12, 2010, 09:52:20 PM
How does the height of tap from center of keg play a role?

Hydrostatic (beerostatic?) pressure will drop about 0.4 psi for every foot the beer has to rise. It's per foot above the level of the beer, so using the center of the keg gives you an average.
Title: Re: Serving suggestions for Keg
Post by: micsager on May 19, 2010, 10:31:57 PM
When carbonating my beer, I keep the temp at 38 degrees and adjust the PSI level to 10.  I will give it at least a week or so, before serving.  When it comes time to serve, it seems like if I don't bleed the keg for each beer I pour, then the beer I pour is almost all head.  Even after I bleed the keg, pour (No problem if I pour immediately after I bleed), wait 10 minutes and pour another beer, I get the same result.  This just doesn't seem right to me...After speaking with the owener of keg connections, I know that my lines are not too long and I have a fan blowing cold air up into the tower to keep the lines at the top cold.  Should I be lowering the PSI when I serve it?

Thanks for any help you can offer. 




10 psi to push seems high to me for C02.  I push with beer gas.  And set that at 10psi.
Title: Re: Serving suggestions for Keg
Post by: tom on May 20, 2010, 04:26:56 PM
Zee, no problem, my response was lacking in detail but was based on the assumption that most people use corny kegs, 3/16" tubing and 38-40 degree temps.
For the record, my setup is:
7' 3/16 tubing,
whatever height a corny is (25"?).
38-40 degreees,
10-11 PSI

How far into the fridge do your shanks go? I just changed from 4" to 6" through the fridge door and it improved the pour immensly.
Title: Re: Serving suggestions for Keg
Post by: mainebrewer on May 24, 2010, 09:47:08 PM
The shanks protrude into the 'fridge about 1.5".
Title: Re: Serving suggestions for Keg
Post by: jwaldner on September 05, 2010, 03:09:51 AM
I'm having a similar problem as well. Check out my "Keggerator Anchor" thread for some ideas. I haven't reached a solution yet but I've tried just about everything and I'm down to opeing my keg up and checking out my dip tube and poppet next.

Good luck,

Jay