XX - 20th Anniversary, released 2008 XXI - 21st Anniversary, released 2009 This masterpiece is a tribute to Black Butte Porter, the revolutionary Deschutes Brewery beer that has excited beer enthusiasts since 1988. This special Reserve Series release is a colossal version of Black Butte Porter. Our brewers enhanced Black Butte XXI by adding some Theo’s Chocolate cocoa nibs from Seattle, dry-hopping it with 100 pounds of Bellatazza’s locally roasted coffee, and then aging a portion of it in Stranahan’s Colorado whiskey barrels. These regional partners provided quality artisan ingredients that give this commemorative beer a truly handcrafted complexity. Released as Black Butte XX in 2008 to celebrate our 20th Anniversary.