As the child of two doctors, horror stories of e-coli on spinach permeated my family's dinner table conversation on a fairly regular basis. I cannot adequately describe the terror that still overcomes me at the sight of a standard plastic salad container. Growing up, we raised our own lettuce - somehow knowing where the food came from made us feel safer. Yes, our newly harvested mesclun mix was covered in dirt, but it was our dirt.
Recently, I have begun to re-examine my fear of industrially raised baby-greens. Is it rational? Probably not. A new piece from NPR looks at the relative safety of local and packaged greens. The conclusion may not be what you are expecting.