The first bagged salads in the United States were introduced in 1986 by Natural Selection Foods--the same company that has recalled its spinach--under its organic Earthbound Farm brand.

FORBES: Magazine Article

Using its bar code, investigators for the Food and Drug Administration have traced the bag back to a single spinach packager, Natural Selection Foods of San Juan Batista, Calif.

FORBES: FDA Seeks Root Of Spinach Problem

As of press time, it appears that a foodborne bacterium thriving on the leaves of bagged spinach from Natural Selection Foods had sickened 173 people, hospitalized 92 and killed 1.

FORBES: Don't Eat Your Spinach