EXCELL laboratory in Bordeaux tested more than 300 French wines from the 2009 and 2010 vintages and found that around 90% of them contain pesticide residues. While we’re getting our hands on the report you can see a wrap up of more info at Decanter. Obviously we’re curious about how may organic wineries were included and, if so, what the statistical difference between those and conventional wines were. A previous study of European wines found pesticide residues in all conventional wines tested and, with one exception, none in the organic wines they sampled.