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Old 02-09-2010, 02:07 AM   #1
WhirlingBastard
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Default My issue with foam and the solution

My beer seems to be complete foam. Shocker! This has to be a common thread. A few things.

1) I used 6 foot 3/16 beer lines.
2) I keep my keezer at 36 ~ 38 degrees


I tried coiling the lines on top of my kegs which did not help. I then raised my temp to 40 and did not help.

I thought about why do the people in the bar always open the taps and let a bit out before pouring a beer. So I tried this and this actuall worked. Although I am not happy about pouring about a half glass of beer down the drain before I put my glass under the tap.

So my question is why does this work and how to correct the issue to allow me to pour a beer without foam on the first pour?

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Last edited by WhirlingBastard; 02-09-2010 at 02:38 AM.
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Old 02-09-2010, 02:53 AM   #2
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it sounds like the lines and or faucet are significantly above the beer temp.

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Old 02-09-2010, 03:37 AM   #3
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Does this happen with all your corny kegs? I have one that defies logic by foaming religiously, despite a well-balanced system and thorough cleanings in the past.

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Old 02-09-2010, 11:42 AM   #4
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Funny that you say that since it does happen everytime with one. The other three is hit or miss.

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Old 02-09-2010, 01:10 PM   #5
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Are you setting and forgetting or setting it to a high PSI and shaking??

I've found that when I set and forget, I never have foaming issues but if I set it to like 30 PSI and shake the keg, I'll still have over-carbonation and foam issues a week later.

It doesn't take a lot of shaking at high pressure to cause foaming issues I've learned. I don't even know if you're shaking the kegs. Just a thought.

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Old 02-09-2010, 02:33 PM   #6
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Sounds like a warm spot if it goes away quickly after starting the pour. Do any lines run by any warm spots in your fridge/freezer?

Also, if it's only one keg, take that sucker apart. Every once in a while I'll get a bad poppet or bits of crap stuck in the poppet, and the extra turbulence knocks CO2 out of suspension. Upon cleaning/repairing the post, everything is aces.

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Old 02-09-2010, 05:28 PM   #7
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I know that all of his lines are in his keezer, so same temp as beer, he also uses the set and forget method.

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Old 02-09-2010, 05:37 PM   #8
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Thanks for answering Jay.

Also you can actually see the bubbles (CO2) in the beer line that is still foaming regardless of what I do. Does this have anything to help find the issue?

Maybe the poppet is bad in that keg causing the CO2 to fall out of suspension.

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Old 02-09-2010, 06:31 PM   #9
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Just because the lines are in the keezer doesn't mean they're the same temp as the beer. You can get some pretty major temperature gradients within the keezer itself.

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Old 02-09-2010, 06:42 PM   #10
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Most people will run a small fan in there to keep the air moving. Even so, the faucets are exposed to room temp, the shanks warm up a bit. CO2 comes out of solution. The way I deal with it is to pour 1-2oz, chug it down, fill glass.

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