I am sorry I wasn't clear enough and I made you misunderstand.
There was also a picture on the previous post, maybe you missed it.
Anyway, yes, every raw is partially "contaminated" with yellow powder (that is the white raw itself tainted with color dropped from the DNP bag) as you can see from these photos I am just adding.
You can see the zip area of the internal bag ALSO tainted yellow. Part that was NOT in direct contact with the raw itself.
That's why I think the 1st hypothesis of QSC was correct, it's color dropping from the DNP.
But I still do not know what to do with those raws.