I found an interesting statistic in this very worthwhile Daytona Beach News-Journal article:
Natural Selection Foods, the nation’s largest organic-food producer, pushes close to 14 million servings of bagged salad a week through its San Juan Bautista plant.
Let’s do some basic math here – Natural Selection has recalled six weeks of spinach (from August 17, 2006 through October 1, 2006). That makes for 84 million servings of spinach. As of this morning, there have been 114 reported cases of E. Coli reported. 114 over 84000000 converts roughly to .00013 of one percent.
Even if we presume that only one case out of ten has been reported, that still only raises the odds to roughly .0001 of one percent, if my math is correct (which is always a big ‘if’).