dark brown, light brown head. aroma has a lot of roasty malty notes, but they are soon overpowered by sour beery and tart beery nots, that is, dark dried fruits soaked in lime and lemon. likely an infection. flavor is not that citrusy or sour, but has this feel of infection, super grainy weird flavor, roasted malty but also lots of unidentified flavors, peppery, herbal, whatever. This one is off, although the sourness is pretty well hidden in the flavor.