For what is worth I've studied a few soft metals under the microscope. It is incredibly easy to scratch and make particles. I mean unbelievably easy.

So think up, what happens when you scrape food like eggs from your non stick pan? How about those aluminum or steel pans using stainless utensils? How about the plastic forks and spoons at the fair or from a food truck? Literally everything I can think of using is creating micro particles. Maybe if the utensils were made or coated in edible films?