Trace amounts. There are trace amounts of insect parts in peanut butter.
The ability to detect things in smaller and smaller amounts does not mean the technology to remove those things keeps pace.
I’m with JJ on this one.
I think they should outlaw water. Ingesting large amounts can cause death. Even a cupful in the wrong place can make you drown! Everyone who has ever died has been in contact with water. Some people are over exposed in the bathtub.