Soda Beverage Line Length? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Bottling/Kegging > Soda Beverage Line Length?

Thread Tools
Old 05-02-2008, 04:24 PM   #1
Jul 2006
Columbus, OH
Posts: 164
Liked 1 Times on 1 Posts

Hello everyone,

Just started kegging some soda this week. I just bought a ton of cheap 2-liter bottles at the store, dumped them in the keg and turned the pressure up to 35 psi. It's been there for about 5 days, and the carbonation just isn't quite right. When I pour it, I get a lot of foam, which settles down. However, the soda just doesn't seem all that carbonated. I want a good, sharp carbonation bite. Should I turn the psi up higher? Right now if I use a 9 foot, 3/16th beverage line. That probably accounts for the foam. However, if I use a longer line, will more of the carbonation dissipate by the time it gets to the cup, leaving a 'smoother' carbonation profile? Hopefully this makes sense.


Reply With Quote
Old 05-02-2008, 04:41 PM   #2
Jan 2008
dallas, tx
Posts: 265
Liked 1 Times on 1 Posts

This depends on the level of carbonation you want and the temperature it is sitting at. Find a carbonation chart online for reference. Sodas are usually highly carbonated but 35 PSI is a little out of control unless your fridge is sitting up around the low 60 degrees Fahrenheit. The foaming is not caused by the line but reducing it as it is creating a pressure drop on the way to the faucet. The foam is caused by your crazy high PSI. Try setting your psi to about 20 (for high carbonation at a moderate temp since I don't know what your temp is). At 20 PSI you should really only need 6-7 feet of that line but only cut it shorter once you hit the carbonation you want, then cut it down little by little to the point where you get a nice pour with no foam. If you don't have high carbonation at your psi you either have a leak somewhere in your system/keg or it's because your pushing it out of solution when it's foaming up so much.

Reply With Quote
Old 05-02-2008, 04:57 PM   #3
Jul 2006
Columbus, OH
Posts: 164
Liked 1 Times on 1 Posts

Real quick, as I'm about to run out and monitor my wort for a boil-over, the kegerator temp is between 38-40 F

Reply With Quote
Old 05-02-2008, 05:55 PM   #4
Gargoyle's Avatar
Feb 2008
Cudahy, WI
Posts: 18
Liked 2 Times on 1 Posts

I make 5 gallons of Sprecher root beer from syrup at a time. Force carb at 30 PSI for 3 days, then turn down to dispensing pressure and it is perfect. kegerator runs right around 38ish degrees.

I run 6 feet of hose from keg to tap in my kegerator, and get perfect pours at like 10 to 12 PSI

This is pretty much how i handle beer as well.

Reply With Quote
Old 05-02-2008, 06:08 PM   #5
conpewter's Avatar
Nov 2007
East Dundee, Illinois
Posts: 5,109
Liked 54 Times on 49 Posts

Another thread on this subject

Reply With Quote
Old 05-02-2008, 06:47 PM   #6
david_42's Avatar
Oct 2005
Oak Grove, Oregon, USA
Posts: 25,599
Liked 158 Times on 148 Posts

@ 34F & 35 psi, I use 15 ft of 3/16ths. Works fairly well.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"

"I would like to die on Mars, just not on impact." Elon Musk

Reply With Quote
Old 05-02-2008, 07:00 PM   #7
...My Junk is Ugly...
BierMuncher's Avatar
Jan 2007
St. Louis, MO
Posts: 12,417
Liked 805 Times on 438 Posts

If you're sampling at 35PSI, you'll get lots of foam and your beverage will be flat.
  1. Kill the gas
  2. Bleed the pressure from the keg
  3. Dial up PSI to around 6-7
  4. Pour a sample and taste.

See if this makes a difference. You might leave the PSI down for an hour or so to allow the beverage to "settle down" a bit.

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Keg Line Length? lpdean Bottling/Kegging 42 09-08-2010 04:21 AM
Co2 Line Length Boston813 Bottling/Kegging 9 10-23-2009 10:23 PM
Beverage line question millstone Bottling/Kegging 3 08-16-2009 12:58 PM
CO2 Buildup in Keg Beverage Line iceman80403 Bottling/Kegging 6 07-07-2009 04:09 PM
Beverage Line for Co2? IrregularPulse Bottling/Kegging 5 06-11-2008 01:44 PM

Forum Jump