how do the growlers work? do you just use a standard beer keg tap or some sort of special filler?
Yep, fents is correct. I use a blichmann beer gun, true homebrew style! Alot of breweries who do it seem content filling straight from the tap, however using a blichmann enables you to purge with co2 before filling, fill from the bottom without agitating & then purge the headspace. Keeps it fresher, longer & works a treat!
Still need to remember that it is draught beer, so i stress the need to refrigerate at all times & consume within 1 week of bottling, once opened you have about 24 hours or so until the carb is detrimentally low. Varies a little depending on style though.