Also known as Rock Bottom Chicago Barrel-Aged Brown Bear Brown
Commercial description
American brown ale aged 6 months in a bourbon barrel.
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Rock Bottom Chicago Barrel-Aged Brown Bear Brown

The brewer markets this same or near-same product by more than one names. This can be the result of a brewer distributing this beer under different names in different countries, or the brewer simply changing the name, but not the recipe at different points in time.