From Alghero, Torbato is a white wine, easy to drink and aromatic, it goes particularly well with fish (and salads) - just as well as seafood and fish are staples for the Algherese visitor! The 2005 was very nice, Oristano is the next large local producer of wine in Sardegna after Alghero.
Local Sardinian beer is ichnusa, pleasant bottled or on draught, the label is based around the Sardinian flag ; a red cross on white background with blind(folded) Moors in each quarter (Click picture to enlarge).
As the label on the beer bottle says it has been produced since 1912
Fortunately (financially), what with my impeccable Italian (?!?!), I didn't accidentally order a 1912 wine.......!
You can easily see the catalonian influence in Alghero (not in the rest of Sardegna). Street names, restaurant menus, churches... and there were even radio programmes in catalonian