The Great Bottle Opener Giveaway

Home Brew Forums > Home Brewing Beer > Bottling/Kegging > Foaming Suggestions

Reply
 
LinkBack Thread Tools
Old 07-12-2009, 11:58 PM   #1
keithsipa
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Location: halifax
Posts: 27
Liked 2 Times on 2 Posts

Default Foaming Suggestions

Well, just installed a tower and am now looking for reasons for pouring full glasses of foam.
Here is my setup. See pics below, I am setting at 10 PSI with about 4.5 feet of 3/16 line at approximately 38 degrees. Beer is Cerveza and tastes fine with decent carbonation after the foam settles, that is. I lowerer the pressure to about 4 PSI with the same foam, just a slower pour. Then upped the pressure to 15 with the same foam and a very quick pour.
I poured 3 glasses in a row with very little difference between the first and last.
As you can see from the pics, I am using the copper line tower cooling method. My next line of thinking is to actively cool the tower?





And ideas would be appreciated........

__________________
keithsipa is offline
 
Reply With Quote Quick reply to this message
Old 07-13-2009, 12:03 AM   #2
Suthrncomfrt1884
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2009
Location: Rockford, Illinois
Posts: 4,079
Liked 23 Times on 22 Posts
Likes Given: 3

Default

I've always had problems when using 3/16 line. I scaled up to 1/4" and haven't had any problems yet.

__________________
He who drinks beer sleeps well. He who sleeps well cannot sin. He who does not sin goes to heaven.

Another HERMS rig...
Suthrncomfrt1884 is offline
 
Reply With Quote Quick reply to this message
Old 07-13-2009, 12:04 AM   #3
enderwig
Feedback Score: 0 reviews
 
enderwig's Avatar
Recipes 
 
Join Date: Nov 2007
Location: Dickinson Texas
Posts: 1,452
Liked 6 Times on 6 Posts

Default

Read this thread
__________________
Read the
Homebrewtalk Wiki!
enderwig is offline
 
Reply With Quote Quick reply to this message
Old 07-13-2009, 12:37 AM   #4
keithsipa
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Location: halifax
Posts: 27
Liked 2 Times on 2 Posts

Default

Quote:
Originally Posted by enderwig View Post
Yeah, I read this before, just a pain to get this stuff shipped to Canada. I have sent them an email regarding shipping. Thanks. Can anyone comment on putting some 1/4" OD tubing in the dip tube to accomplish the same thing?
__________________
keithsipa is offline
 
Reply With Quote Quick reply to this message
Old 01-10-2011, 07:22 PM   #5
beerman1957
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Location: Sierra Vista AZ, AZ
Posts: 202
Liked 2 Times on 2 Posts

Default

Have you tried installing more beer line? I would have at least 5' of 3/16" line. There are other factors such as altitude and beer temp and CO2 levels in the beer. Generally speaking, most of what I have read is to have 5-6' of 3/16" beer line. Also, having too much beer line can lead to other problems.

From Micromatic Web site via Scott Zuhse (credit goes to him):
http://www.micromatic.com/forum/us-e...beer-line.html Post #10.

Seems that everyone is on the same page. Just to clarify, always determine what the applied PSIG (pounds per square inch gauge) to keg should be based on volumes of gas in beer, temperature of beer, and elevation. Once determined, then build in the secondary pressure that exists in the system. This pressure is experienced by the beer as it flows through the system.

This secondary pressure is often referred to as restriction and three variables in a system contribute. System hardware such as shanks, faucets, couplers and misc. hardware is one. Secondly, gravity will impact the beer as it flows and third, the one that is easily altered, would be the tubing.

If you accumulate the restrictive values of these variables and they equal your PSIG, your flow speed will be very close to 128 oz. / min. If this secondary pressure against the beer is greater than your PSIG to the keg, then your beer will flow slower.

Example: Miller Lite @ 38F @ 700' elevation @ 14 PSIG. Although all hardware has an impact on the beer as it flows through, it is so minimal that it is not worth considering. Most direct draw systems have four feet of gravity and at .5 per foot this would be two PSI against the beer. Add four feet of 3/16" ID vinyl @ 3 PSI per foot and you now have 14 PSI against the beer total. Gallon a minute flow.

With the direct draw type systems, where the keg is within a few feet of the faucet, 3/16" ID vinyl is used exclusively. It is quite powerful in terms of restrictive pressure against the beer whereas it is perfect for these "short" system runs.

Whether this value is 2.2 or 3 lbs. per foot relies on the actual ID of the line from the respective extruder and how it was tested. With the numerous years of exposure in the industry, I have often witnessed lax tolerances from tubing extruders .

This is why a recommendation for the direct draw systems would be not to get too excited about all of the math and concentrate more so on the PSIG to the keg. It is a lot more difficult to control a gas in a liquid - much easier to work with fluidtronics.

Simply start with a longer beer line - six to seven feet (longer at higher elevations) and cut back in four to six inch increments until you acquire the flow speed desired. Do not attempt this until you are confident that you have first "aligned the stars" with the PSIG to the keg! "

__________________
beerman1957 is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
foaming through gas line Ol' Grog General Beer Discussion 3 04-21-2009 03:36 PM
keg keeps foaming jaccoo Equipment/Sanitation 1 01-08-2009 02:16 AM
Foaming out the airlock MikeRobrew Beginners Beer Brewing Forum 1 12-22-2008 07:56 PM
Foaming? KitrGy Bottling/Kegging 3 03-06-2007 01:04 AM
excessive keg foaming God Emporer BillyBrew Bottling/Kegging 14 04-10-2006 06:25 PM