Thank you guys for quick response.

@Skiploder
Yeah thats a good idea

@rickyRRE
I was thinking about that..If you get rid of the treated substrate, you lose the PAM with it..its logical..but I know I ve seen some people say that they do it.
Since Im a bit paranoid around my snakes, I would rather be changing the sustrate x number of times then let something happen to them

But yeah, the thing that interested me the most was - if I could feed on already treated substrate (when its dried out offcourse).