Asimov NYT wrote:Biodynamic agriculture is essentially what the wine writer Jamie Goode has called “a supercharged system of organic farming,” in which the farm is viewed as a self-sustaining, self-regulating eco-system. While biodynamics has become notorious for seemingly weird practices, like filling cow horns with dung and burying them in vineyards, and aligning certain chores with phases of the moon and stars, several scientific studies have shown it can be effective even if the underlying reasons for this are not yet understood.
Now, I've never encountered any of these scientific studies, but I suspect that the application of biodynamic growing and winemaking was unlikely to be randomly assigned to winemakers and certainly was not done blind (with the winemakers not knowing whether or not they were applying biodynamic practices). For purposes of establishing causation, this leaves all sorts of possible confounds that could explain increases in wine quality that have nothing to due with the biodynamic practices themselves--chief among them that only really odd people were originally willing to take a stab at biodynamic winemaking, and it might be odd people that make better wine--whether burying cow horns with dung or addressing their grapes in archaic plural subjunctive verb forms. (The organic side of biodynamics I would think has a real effect--it's the above-and-beyond organics eco-philosophical accoutrements I've found hard to swallow.)
The reason I bring this up is I wonder if a lot of the attention the spread of biodynamic practices will result in a devaluing of the 'brand' of biodynamics (and not meet the hyped expectations of biodynamic's boosters). When I hear that major corporate winemakers (eg, Benziger) are going biodynamic, I find it hard to believe that any quality differences seen when the early adopters switched to biodynamics will be repeated when the bigger players switch over. Any thoughts?