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Human urine is usually 90 to 100 degrees Fahrenheit, and synthetic urine must be heated to the proper temperature. Some synthetic urine kits include a temperature strip for this purpose. It may be a pain to heat synthetic urine, but it is essential for passing the test.
Ingredients
Synthetic urine is urine is made to imitate the human body's natural temperature. For this reason, fake urine must be kept at the right temperature. For example, human urine must have a temperature of 94 to 100 degrees Fahrenheit. Keeping it below that range will cause people to believe you are dead, and higher temperatures will cause them to think you're running a fever.
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