The laboratory study tested for fecal bacteria, listeria and staph. I like this study because it actually tested a larger number of locations.
Here were some of the highlights:
The trays came back with no evidence of fecal bacteria, listeria and staph. The paper inserts really do help prevent bacteria.
The results showed 15% of the lunch boxes evidence of fecal bacteria. The source is children not washing their hands after using the restroom. Also, lunch boxes should be rinsed out at least once a week if not more.
Half of the lunch boxes came back with a presence of staph but at very low levels.