I don’t smoke so it doesn’t matter to me but…
In the test’s I have taken they will measure the temp of the piss with a little guage right after you hand the cup over.
So a condom filled with piss is going to be ice cold, even if you keep it in your drawers.
My buddy did use that cleanse stuff, and it worked fine for a piss test. This was about 30 days after the time he last smoked.