If you would like to wash the Shewee; once you get home the Shewee can go in the washing machine with your undies, be washed by hand in warm soapy water or even go in the dishwasher!
If you are reusing the Shewee to give urine samples, the Shewee can be sterilized in an Autoclave, in the microwave or boiled.
The plastic withstands temperatures up to 120 Degrees Celsius and detergents including bleach.
ON LEAVING THE BODY, URINE IN STERILE