What is a Craft Beer Cellar Advent Box? It’s a full case of 24 individually wrapped and numbered craft beers, each hand selected by the Beer Geeks at Craft Beer Cellar. The selections in each box are thoughtfully chosen to reflect our favorite flavors, styles, and the season! It’s a world-class selection of seasonal and year-round craft and international brews. Unwrap one beer per day from December 1st through the 24th, and get into the spirit of the season.