This week Roque and Luke turn their attention to the geekier side of the wine world. We all know about oak barrels and ageing wines in them. But is that all there is? What about stainless steel, concrete, amphora? And do barrels have to be oak? Find out today as they crack open a bottle of Tinácula from DO Ribera del Júcar, which in itself has been aged in a slightly strange way.