I know that some of them put food quality bleach on lettuce and certain items to keep them looking fresh.
I never knew some of them sprayed starch on it! I got this from someone's post in that pancake thread. (Boy! Did that thread take on a life of its own or what?!).
What kind of starch? I've never heard of this. I may have to rethink salad bars altogether! I did a post asking why they are so bad but this was never mentioned.