I just brewed by first DIPA, which is batch number 3 for me when it comes to all-grain brewing. I've forced carbonated before, but this is the first time I tried to speed up the process by agitating the keg for a couple minutes at 30 psi, then put the keg in my kegerator for about 18 hours.
When I poured my first beer it had carbonation, but it didn't have any head. At that point I increased the psi to 20 and let it sit for another 12 hours, but there was little to no change. I'm wondering if the beer just isn't carbonated enough at this point to give me any head yet? I've read other posts here and elsewhere. I understand that oils from dirty glasses or a rinse-aid may be the culprit, but that is not the case here.
FYI, my grain bill consisted of: pale 2-row (11 lbs) white wheat (2 lbs) 20L crystal (12 oz.) Cara-Pils (8 oz.)
I've read that the cara-pils should help with head retention, but if there's no head it can't retain :-). My other concern is that I don't want to over carbonate it, and since I tried the quick force carb way rather than the set it and forget it method I'm unsure how long I should keep my psi up to carbonate it to proper levels.