The Kras is a windswept limestone plateau above Trieste where the soil runs blood-red with iron and the Stoka family has been farming for over two hundred years. Teran is the local red grape: ferrous, bracing, tasting unmistakably of the ground it grew in. Bottled as a pet-nat, it becomes something genuinely wild, a sparkling red that fizzes with sour cherry and tart red fruit over a mineral, almost iron-filing bite. Serve it cold and resist the urge to overthink it. This is the sparkling red for people who were certain they did not like sparkling reds.