As part of my Cellar Reserve Membership at Crooked Stave, I received a bottle of Blackberry Petite Sour. The beer pours a red tinted amber color with a bubbly white colored head that fizzles away. The aroma consists of vinegar, blackberries, sugar, and pie crust. The taste is tart and puckering with a dry blackberry flavor. A tartness settles in on the finish with vinegar and a touch of sugar and pie crust on the after taste. A lingering oak flavor and dryness also comes out. The alcohol content is 5.0% ABV. This was a wonderful fruit-infused sour with a lovely tartness and a light oak dryness. Another winner from Crooked Stave!