Old-vine Grenache and Carignan Food and drink · Porrera, Priorat, Tarragona Image of Porrera, not of the place itself. The old vines planted on steeply sloping costers give minimal yields and very concentrated grapes. From them come the dense, mineral reds that have made the comarca known, often vinified by separate plots. Photo: fer55. (CC BY-SA 2.0) What to see and do in Porrera