Overly Foaming Draft Beer
TroubleShooting
Marc Kovach — Dover, Pennsylvania asks,
When I keg my beer, I force carbonate for two weeks at 14–15 psi. At this time, I have found carbonation is right where I like it and I get just the right amount of head in my glass. This condition lasts until I get about half way though the keg (approximately 11⁄2 months later) when I start getting half beer and half foam. This tends to be worse with hoppier beers. The 14–15 psi is what I calculated to result in 12 psi after pressure loss through my lines. My dispensing lines are about 5–6 feet long. Any ideas what may be causing this?