Not sure if this is the right forum. I have some coyote urine that is 2 yrs old. Has froze and thawed for both years. Seal well. What should it smell right if still good?
Thanks

if the urine was good clean urine it should be good. If stored in plastic it will loose some vapor of ammonia over time, just how long term storage is with plastic containments. If it was contaminated urine to some degree it could begin to spoil and sour over time.

Bottom line is, if it smells like ammonia, it is good. If it smells like sewage, it is bad and needs tossed.

Thanks