True North Turning Violet! Blueberry Sour offers a tart and sweet fruity taste with a hint of citrus. This 16oz/4pk is packed with a powerful blueberry flavor, giving you a sour taste that is sure to satisfy your palate. Perfect for those who love bold flavors, this beer is sure to be your go-to beverage. Fermented with blueberry and Meyer lemon purées to produce bright flavors of blueberry lemonade and blueberry pastry. Pleasantly tart with a refreshing herbal citrus finish.