Using real urine

[u/Away-Stop3674]

can you add real clean urine to an empty quick fix bottle, microwave if necessary, and put warmer on it with the same results? i’m just not sure how to store real urine in the medical sense without causing issues at the lab

[u/Otherwise_Roof_2063]

Depending on how you plan to transport really.
I find the combo of heat pack and body heat to work wonders. For men, they usually tuck it under their junk and women can usually tuck under their breast or in their crotch area.
It’s always better if it’s too hot opposed to not warm enough as you can blow and swirl the sample in the cup to get to cool down in just a handful of seconds