I always bring back a few bottles of local craft brews when I travel anywhere in the world. Generally, I use a nylon fold up bag and fill the bottom with a couple of sections of the local newspaper for form a base. I then place the two six-pack cartons in and pad the ends with a T-shirt or with magazines or more folded over newspaper sections. This is then carried on with my second carry-on item, which means I must now check my roller bag if I am using it.
I have never had a problem going through customs anywhere in the world, nor with security, even post 9.11. Even though I may be over the official limit for such alcohol duty free import into Canada, I have never had to pay extra for up to a dozen bottles. [I believe one can bring in 3 litres of wine or beer.]
I too brought back a nice sampling of less available German and other central European beers in bottles and cans from the Altbeir in Dusseldorf a year ago November [including those purchased on a side trip to Berlin].
The biggest hassle is the weight of the carry bag, since most of what I bring back is in bottles [few honest craft brewers would can their brew, naturally].
Great little journal you're associated with. Quite enjoy picking up the various regional editions on my travels across NAmerica.