The recent open carry civil disobedience demonstration gave me an idea. If your beer is closed they need a search warrant to test the liquid so the answer is to ensure you dont lose the beer cap.
A manufacturer of liberty beer would attach the beer cap to the bottle in such a way that it wont fall off or use those plastic pop-top lids you get on water bottles so each time you take a sip you can close the lid. I would call it the Jardis freedom beer and the lid is the anarcho-cap lol
Trust an Aussie to come up with this idea lol