On a different forum somebody posted this. http://patsbcb.com/beer.html
Here is the process that i think they use to concentrate the beer.
Step 1 - Brew the beer
Step 2 - Fermentation
Step 3 - Freeze distill - Freeze concentrate the beer - They might not do this
Step 4 - Distillation - Heat the concentrated beer so that you extract the water but keep all the flavor.
Since the big problem is getting rid of all the water they would need to keep a ridiculous control of temperature. I think they would do something similar to how they refine oil using a fractal distillation chamber. This would take apart the beer into its individual parts then they throw away the water and mix all the other parts back together.
What do you guys think?
Also mods please move is this is the wrong place.