Pre-Washed Spinach May Not Be As Clean As You Think

August 25, 2015

While the rinse used on spinach may be effective at cleaning dirt and debris from the leaves, it’s not necessarily effective at killing pathogens, thanks to the topography of the spinach leaves.

Researchers at the University of California-Riverside tested different wash conditions on spinach contaminated with E. coli and measured the rates at which the pathogen sticks to, and detaches from, the vegetable.

They also did some computational modeling to simulate how the shape of spinach leaves influences the ability of the rinse to actually disinfect.

University of California-Riverside post-doctoral researcher Nichola Kinsinger studied the topography of spinach leaves.