How to Maintain the Right Warmth of Synthetic Urine

As much as 95% of employers prefer urinalysis as a drug testing method, and this specific statistic may have increased the popularity of synthetic urine through the years. However, to use the product successfully, it is crucial to use it properly.

Why Keep Synthetic Urine Warm?

Because initial drug screening does not usually come with a special test for a the validity of a sample, the testing staff simply checks the urine’s temperature to ensure that it hasn’t been substituted. Human urine is naturally warm, so it follows that your synthetic urine sample is warm too; otherwise, testing staff will think it’s fake and decline it. Of course, getting caught also spells trouble with the person or organization that required the testing, not to mention with the facility itself.

Temperature of Human Urine

Normal human urine temperature is about 94F to 96F warm. The staff usually records the temperature of a drug test sample within 4 minutes of receiving it, knowing that ambient temperature can cause changes in it. Acceptable range is from 90F to 100F, and any sample that lies outside of this deemed suspicious.

Warming Synthetic Urine

These are the most common methods of heating synthetic urine:


By far, increasing synthetic urine’s temperature is easiest by microwaving. Just place the container in the microwave for around 10 seconds and you’re done. To know if the sample is usable, use a temperature strip. Don’t leave it in for longer as excessive heat can destroy it. Even after cooling, the properties of natural human urine can never be restored in the sample.

Hand Warmers

Hand warmers are handier and always available, making them a more practical option than the microwave. All you have to do is pour the sample into a small container or a sealed bag, and wrap the hand warmer around it with the help of an elastic band or tape. Hand warmers aren’t all created equal however. Get one that heats steadily within 90F to 100F for as long as needed.

Your Body

Sometimes, you won’t have to look for – your own body can be your best synthetic urine warmer. After putting the sample in a sealed plastic bag, tuck it inside your underwear or in your inner thighs. Another good spot is inside your bra, if you’re a woman, or under your armpits.

Practice, Practice, Practice

Finally, before actually showing up at a testing facility with your synthetic urine, don’t forget to practice, practice, practice. You need to know exactly what you’re going to do and how you’re going to do it to avoid getting caught. The more your practice, the more confident you will be during the testing.

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