Primary fermented with our mixed culture of wild yeast, Sour Rose undergoes fermentation in large oak foeders on raspberries and blueberries. Showcasing bright effervescent characteristics, Sour Rose is the perfect sour beer for all seasons and occasions. Unfiltered and naturally wild, we package each can with a small amount of yeast to maintain maximum freshness for wherever life's adventures take you. 4.5% ABV.