I was thinking about getting one of these to take to a picnic for next week so i could get some friends to try my home brew. How would i keep it cold once i got it to the picnic? I mean i guess i could just throw it in a cooler and take it out everytime i want to serve from it but that just sounds like a PITA. Also, I can just take beer that's already kegged and carb'ed and just siphon it into the party pig right?