The brewery has a free tour which provides some in...

The brewery has a free tour which provides some interesting history and an idea as to how the production takes place. You also get a small sample as part of the tour and a token for a free 16oz draft at the end of the tour.
The free tours are on the hour every hour. There are other paid tours which go into further details.
There is the biergarten which is their outdoor restaurant right at the entrance. In the summer this is where the free beer is usually given out. This has a broader selection.
When we did the tour in the winter our choices were just limited to bud/bud light/grey goose and shock top.