The urine has to be a certain temperature. It would be fine but might not be the right temperature. And I don't think you could keep reheating the same urine over and over.
I plan on getting a new sample every 2 days I'm on the sap program were I get tested randomly 5 times in a 1 year period
I know that some synthetic urine can be heated and cooled to no consequence. I think I'd have to quit for fear of constantly wondering when it's gonna happen. Or possibly getting lazy and not having it or not having it warm enough. I wouldn't trust myself to get through that year.
I had to quit for 6 months and I smoke a lot. It wasn't hard to quit and it was a lot easier to take my UAs every time without having anything to worry about.
Yea I think I'm gonna have to set my mind on quitting for the year or at least see how there coming I know they swabbed me first time