Sierra Nevada – O’Bryen’s 20th Anniversary
Story by:
MyBeer Buzz
Published: December 25, 2013
| Updated: July 5, 2025
Here’s a specialty keg-only beer from Sierra Nevada called O’Bryen’s 20th Anniversary. This brew is 50% ale aged in whiskey barrels and 50% ale aged in bourbon barrels and it will come in at 8.5% ABV. There’s also an unblended version approved (below) as well. 
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