I do a slightly different version of bub's approach. I usually chill the keg first. I then hook up the CO2 at 30 psi until it stops hissing. Disconnect the CO2 and shake the crap out of it for awhile. I repeat this once or twice more and then check the pressure with my homebuilt keg pressure guage. If the pressure where I want it to be (i.e. my dispensing pressure), I stick it in the kegerator and hook up the CO2 at my regular pressure (about 11 psi on my system). If the pressure is not high enough, I simply repeat the process until I get it where I want it. This avoids the problem of overcarbonating that many people have with the "shake and bake" method.
Once I get the keg in the kegerator and hooked up, I try to wait 24 hours to let the pressure stabilize and for the crap I stirred up to settle.
Wayne
Bugeater Brewing Company

