500mL bottle, pours a deep dark mahogany with almost no head. Nose is complex and rounded, with lots of port barrel character, gently tart blackberry, and some bugs hiding underneath. Flavour is fairly sour, acidic, and dry, with lots of sour blackberries, gentle bugs, and subdued port wine barrels. The nose is much more exquisite than the taste, which is compromised a bit by the acidity, which subdues the other elements. As it warms, the flavours develop more, almost as though I'm drinking a tart red wine. Good, but needs a bit of refining.