Lagunitas Imperial Stout

Lagunitas Imperial Stout is 10% ABV, and pours black with a wispy beige head.  There is a whiff of rust and some coffee off the head.  As the head recedes note of cognac, raisins and butterscotch make their presence known, and a nice tanginess is present in a good mouthful.  The finish is dry at first, but mellows to coffee and bittersweet chocolate as it warms.  My pint came from a barrel,  but I trust the bottled variety is good as well.