co2 out of solution

[matc]

Hello, this is the first time I have problems with my draught system. My ipa comes out in foam, the beer lines are full of bubbles. At first, I suspected a dirty beer line so I cleaned it with a commercial beer line cleaner for a couple of hours. I still have bubbles in my line.

I haven't touched the fridge temperature nor the regulator, which is set a at 15 psi. The first few seconds of pouring is perfect then bubbles start appearing in the line and foam comes out. Any ideas ?

I've never had this problem before. Should I increase my regulator pressure or back it a little bit ?

 

[BlueHouseBrew]

Check to make sure that the seal between the diptube and the beer-out post is good (the post on the keg, not the disconnect). If the o-ring isn't seated correctly (due to a deformation in the flange on the diptube, or crooked/incomplete mounting) CO2 from the headspace in the keg will mix with the beer as it flows out of the diptube and the symptoms you describe will result.

 

[matc]

Yes but the first few seconds of the pour, the beer comes out fine. 3 seconds after, foam comes out. I'll check out my oring though

 

[LeafMan66_67]

I have a similar problem, caused by the CO2 coming out of solution (I assume) in the middle of my line. First part of the pour is great, then a bolus of foam, and then fine again. I can pour a second glass right away without any issue. Half hour later, same issue.

 

[matc]

No once my the beer foams up at the faucet it will stay the same until the end

 

[GilSwillBasementBrews]

I have a similar problem, caused by the CO2 coming out of solution (I assume) in the middle of my line. First part of the pour is great, then a bolus of foam, and then fine again. I can pour a second glass right away without any issue. Half hour later, same issue.

This sounds like temperature difference. Is try a small fan in fridge to circulate air. Sounds like tap is warm and lines once everything gets cold your pours is fine.

 

[matc]

bump...can anyone help me ? I tried tightening my oupout post, it was already pretty tight so I don't think air is being suck from there. Is there anything I can do ?

 

[LeafMan66_67]

This sounds like temperature difference. Is try a small fan in fridge to circulate air. Sounds like tap is warm and lines once everything gets cold your pours is fine.

Thanks, not a temperature issue though - second tap is fine. Problem follows the keg. All new o-rings.

 

[day_trippr]

bump...can anyone help me ? I tried tightening my oupout post, it was already pretty tight so I don't think air is being suck from there. Is there anything I can do ?

There is no "air", and there's no "sucking". It's CO2 being injected into the beer stream right under the Out post, and it's coming from the head space of your keg, sneaking by a missing or defective Out Dip Tube O-ring.

Don't care if you replaced that O-ring sometime before this batch. If you haven't replaced that small O-ring in the course of investigating the problem with this keg, that's definitely your prime suspect.

Otherwise...clogged Out dip tube, clogged poppet in either the Out post or inside the disconnect, frozen beer, and a pin-hole in the Out dip tube itself, have all been found to cause various maladies that lead to foam.

But definitely start with that O-ring...

Cheers!

 

[bfish]

dip tube clogged from the hops???

 

[doug293cz]

dip tube clogged from the hops???

Some folks dry hop in kegs.

Brew on

 

[hockeyrounds]

try some Teflon tape with every fitting. sounds like a vacuum leak..

 

[doug293cz]

try some Teflon tape with every fitting. sounds like a vacuum leak..

Vacuum??? Not in a pressurized keg.

Brew on

 

[hockeyrounds]

Vacuum??? Not in a pressurized keg.

Brew on

Yes, you make a good point. I'm still new to this. I can think about the times I have used a tap from the liquor store. If I didn't have it wide open, there would be foam. Maybe a restriction issue?