Frozen Urine Question

The following information is from FBR......

There is no need to run it through a coffee filter. When it comes back up to temp everything should dissolve and if it doesn't there is a certain amount of sediment in urine anyway. When it's cold it looks very cloudy but that will go away when it is heated up as many things tend to dissolve better when warm. I remember Lew Scannon and I disagreed on this once before but there is no need to use a coffee filter.

Urine can be frozen, thawed, and refrozen many times just use some common sense and try not to let it come up to room temperature then sit around for another 8-10 hours before you refreeze it. Try to monitor the time total elapsed time it has on it at room temperature. If you have frozen a 2 liter bottle of it and it has come up to room temperature for 6 hours 10 times then that would start to worry me. But if you only let it come up to say 50-60 degrees where it is kind of like a slushee and you shake it up well, pour what you need, and refreeze it, then this would be the best way to do it. I don't know if you are planning on freezing that much. If you are you may want to use 2 bottle, a 2 liter and maybe a 16-20 ounce bottle and thaw the 2 liter, fill the smaller bottle, then freeze and thaw the smaller bottle and refill it when it runs out. A smaller bottle will also dethaw faster. I doubt you'll need that much though unless you have random tests every few days!

It isn't that freezing does anything bad to the urine but it can only slow down the decay of the urine so much then eventually the urine will become no good after about a year.