In the kinds of bars where you probably shouldn’t order wine to begin with, you’ll often be given the choice between a big buttery Chardonnay and a grassy, gooseberry glass of Sauvignon Blanc. So, it’s natural to assume that when you have a broader spectrum of better wines to choose from, you might not reach immediately for the Sav. But before you give it a miss, make sure you know what you’re missing. Sauvignon Blanc is versatile and varied, and very different from one grape-growing region to the next. Read on.