piedmont > wrote:

>Avoid convenience foods, buy a head of lettuce, peel off and throw away
>the outer layer of leaves, rinse and dry before consumption. Buy whole
>carrots, rinse before you peel. Etc.. Any food that is processed for
>convenience are more prone to contamination.

The most contaminated salads were those contain spinach
leaves

How do you buy a "head" of spinach?