My guess is that they'll fill it from a tap (so it's just like a big steel growler). So all that pressurizing will do is ensure that it's sealed and that there's no O2 in there which will be bad for their beer.
Now, if they go ahead and counter pressure fill, then having the keg pre-pressurized would be helpful - one less step for them, but 30psi seems pretty excessive.
Topic: Filling Corney Keg @ Microbrewery (Read 6091 times)
