Whatever works man.
But commonly people rubberband hand warmers around the contents to keep it warm
TeKNiQUE Reviewed by TeKNiQUE on . NEED SOME HELP I have a drug test on thursday at 8 AM, I plan on getting clean piss from my buddy and keeping it in a 2 oz bottle in my underwear, but the problem is I cant get it from him right before my test, so I have to get it wednesday night. How do I keep it fresh? Do I refrigerate it? or just keep it heated over night til my test in the morning? Also I am a male, does it matter if I use piss from a female? Rating: 5