There are two major categories in the organic wine family: “organic” and “made with organic grapes.” What’s the difference? Mostly, sulfites, which have proven to be a factor for some people who experience headaches and allergies from wine consumption.
These wines are not so easy to identify, but they are likely more common in the marketplace than certified organics. Sustainable winemakers blend the environmental practices of organic farming (like covered crops and natural pest control) with other considerations — mainly, doing what makes sense economically (i.e. conserving power, water, implementing green-building design) and providing healthy work environments to create a balanced system.
This breed of winemaking combines innovative farming techniques (chemical-free, organic practices) and ancient methods (factoring in phases of the moon) with the goal of creating a self-contained ecosystem in which animals, pests, plants, natural elements, and farmer nourish one another, thriving without outside factors, like imported soil. Biodynamic winemakers don't engage in the typical manipulations, like adding yeast or adjusting acidity. The concept, like total sustainability, is somewhat idealistic — something can always be improved.