I brewed and kegged a Smoked Robust Porter, which is delicious, and have noticed the head was rich and thick at first, but now it is almost non existent although there is the same amount of carbonation. This is over the last two to three weeks after kegging, it was force carbed to about 2.25 saturation.
It is in my Keezer on tap which is set at 36*f while I lager a doppelbock. It is hooked up to co2 at 8-10 psi.
If I had to guess why I have no head retention on my porter it would be because I have it so cold but my
head can't get around that because I've had bottle conditioned beers in the past that only had head on them when they were near freezing…help me AHA forum.. you're my only hope