Carbonation (under-carbed) Issue

[htims05]

So this second keg that I have done, I decided to do the set and forget method for carbing. It's an american wheat, the keg was filled to the brim, temp controller set to 38*f. I set my regulator to 11psi for 7 days. Pulled off a pint today, no head at all, no visible bubbles in the glass either.

Where have I gone wrong?

 

[day_trippr]

First, a full five gallon cornelius style keg takes a bit over 2 weeks to reach equilibrium under typical conditions.

Beyond that, if "filled to the brim" is literally the truth, there's so little head space in that keg that the rate of carbonation has been attenuated, as the CO2/beer interface area pretty much dictates that rate. Kegs should be filled no higher than the top of the side wall to have the full 50-odd square inches of surface area for the CO2 to dissolve through...

Cheers!

 

[htims05]

First, a full five gallon cornelius style keg takes a bit over 2 weeks to reach equilibrium under typical conditions.

Beyond that, if "filled to the brim" is literally the truth, there's so little head space in that keg that the rate of carbonation has been attenuated, as the CO2/beer interface area pretty much dictates that rate. Kegs should be filled no higher than the top of the side wall to have the full 50-odd square inches of surface area for the CO2 to dissolve through...

Cheers!

Yeah - it was full, I mean I overflowed it not paying attention and had to pour some out just to be able to put the lid on. So, now that I think about it, that makes sense that hardly anything has happened in a week....it's entirely possible that the gas diptube may have been in the beer as well - so the surface area may have only been that much.

So over the course of pouring a few pints over the last couple days trying to figure out what's going on...it's no longer that full....and I ended up procuring a diffusion stone in the past few days...so trying that.