Every wine list has one, every supermarket stocks it, and almost nobody stops to ask what Rioja actually is. Spain's most famous red deserves better than autopilot.

Rioja is a region in northern Spain, not a grape, and its wines run from bright and juicy to brooding and decades-deep. The good news: the label does most of the explaining, once you know the code.

Tempranillo, With Friends

Tempranillo is the leading grape, usually with a little Garnacha for warmth and flesh. Expect red cherry and dried fig, a dusting of leather, and often that tell-tale note of vanilla and dill that comes from time in oak. It is a red that manages to be both comforting and quietly serious.

Crack the Ageing Code

Four words tell you almost everything. Joven is young and unoaked. Crianza has had a year or so in barrel, softening nicely. Reserva is longer-aged and more savoury. Gran Reserva is only made in the best years and released after years of patient waiting, all leather, tobacco and dried fruit.

Old School vs New Wave

The traditional style leans on American oak and long ageing for that classic, mellow Rioja character. A newer wave of growers works single vineyards with French oak and a lighter touch, chasing freshness and a sense of place. Both are worth your time; they are simply different moods.

At the Table

Rioja was built for roast lamb, for chorizo and for anything that has spent a happy hour in the oven. A Crianza is your midweek friend; save a Gran Reserva for the sort of Sunday that deserves one. Either way, stop drinking it on autopilot. It has always been more interesting than that.