Organic wine - it's around you, but it might be hard to tell

"People will sleep better not knowing how their sausage and politics are made," Otto von Bismarck said — and he might have added wine to the list, though one sees the Iron Chancellor as more of a beer man. The production of wine grapes in recent decades has become a festival of chemicals — pesticides, fertilizers — from which many of us instinctively avert our gaze; we like wine, we want good wine, and when we get good wine, we are not inclined to ask any questions. Still, there is growing evidence that a paradigm shift is under way, to judge by the public relations emphasis that winemakers around the world are placing on organic and biodynamic grape production and on the broader if slightly hazier theme of sustainability.