Lateralis diatomaceous earth contamination

[lawman123]

My roaches were contaminated with DE (lethal to roaches) when I used an old hamster bin as their enclosure. I washed and wiped the bin to remove leftover diatomaceous earth but still 2 days after putting the roaches in said bin, I found many dead which I highly suspect was due to the DE that used to be in their enclosure. I removed the dead roaches but some of the living roaches were feeding off the dead ones. Can I still use the surviving roaches as feeder insects for my tarantulas?

 

[DomGom TheFather]

There's a chance some clung to the plastic if it's textured. I'd just ditch that enclosure and harborage and give it a week. If no more die, should be good.