New World countries like Chile, New Zealand and South Africa are so good at making Sauvignon Blanc that it’s easy to forget about the variety’s home base in the Loire Valley. And yet, at their best, wines from place like Pouilly-Fumé and Sancerre are unbeatable. This example from long-term Tesco supplier Fournier Père et Fils is well worth trading up for. Pithy, nettley and mouth-wateringly fresh, it has good texture from time on lees, stony minerality and flavours of elderflower, lime, celery and white pepper. Delicious.