Aye – young unaged Rioja – best drink it slightly chilled with something light like tortilla/chorizo/chicken/salmon, or by itself. Crianza/Reserva/Gran Reserva – the names can be confusing but basically just mean more aging. All go best with roast red meat. The wood (of the barrel in the aging) gives it body which cuts through the oil and grease, so you still get flavour. No need to chill, room temp is best. White and Rose are both good too. Aged white is ace if you can find it. Not many bodegas do it now. Pricey mind.