Hi Joseph,
The cow urine needs to be distilled before storing. The procedure to distill cow urine...
Put it in a pressure cooker. At the opening on top where the whistle normally is, attach a heat resistant pipe. The other end of the pipe should open into a clean vessel kept dipped in water. Heat the urine in the pressure cooker and collect the distillate in the vessel. Do not use the pressure cooker for anything else. The distilled cow urine can be used for 1 – 2 months, if preserved in an air tight container.
Regards
Ashwini S