How to Keep Your Synthetic Pee Warm for a Pee Test

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If you are reading this, you already know what synthetic urine is and why you would use it. But let’s answer the question at hand. Maybe not the most pleasant subject, but someone has got to talk about it. So, here it is.

Pee is warm when it is excreted (duh) and sometimes situations arise that test that temperature to rule out false readings. The temperature of the sample must be within the safe zone of 90-99 degrees Fahrenheit otherwise it will be invalid and suspicious.

Synthetic urine is becoming more of a reliable option in many cases. But how do you keep it warm?

As with real urine, synthetic has to be in a specific temperature range when giving a sample. Maybe storing on your car’s dashboard on a hot day is what you had in mind. It’s probably not the best way, but in a pinch, it might work.

We have some additional methods that are tried and true options. The ways to keep it warm vary from slow and discrete to quick and not so private. Whatever may arise, make sure to be prepared.

Had the munchies recently? Don’t sweat it! We can help. Here are a few ways to make your fake pee at the perfect temperature.



Not just for those burritos, you may be craving. But, that does sound delicious. Microwaving is a direct first step to initially and quickly bring the urine up to temperature. Follow these directions. Otherwise, you could easily overheat.

  1. Remove the cap of container and heat for 10 seconds.
  2. Replace the cap and give it a little shake to distribute the heat.
  3. Check the temperature either by a testing strip, which you can buy at any pharmacy or the temperature strip on the bottle.
  4. If the liquid isn’t in the safe zone of 90-99℉, microwave for 10 seconds, shake and repeat until you reach the desired temperature.

Be careful to only use 10-second increments as to not overheat the urine to an extreme temperature, which can destroy its validity. That would be bad. You heated it but didn’t use it? That’s okay! Synthetic urine can be reheated an unlimited amount of times during its shelf life.

Microwaving gives you the ability to get the sample to the perfect temperature. It can be tricky to keep private if you aren’t at home. But, it is the quickest.

Microwaving is a great option when you know when you’ll be using the fake pee and can prepare it ahead of time in the privacy of your kitchen.

Don’t have a microwave handy? Don’t worry! Keep on reading.

Hand Warmers

Hand Warmers

Yes, those little packs you use to keep your hands warm in your pocket during the winter can also be used for your fake pee. They can be bought at almost any sporting goods or grocery store, or it may come with your synthetic urine set.

They are a great option because they are easy to carry around and use – they only require a quick shake and, BAM!, you have instant heat. Follow the directions on the package and strap to the urine container with a rubber band.

Make sure it’s on the opposite side of the temperature strip to keep an accurate recording. It can stay there as long as the packet is warm. 

If you’ve already used a microwave, the packs will keep the pee at the right temperature for several hours. You can also use them to bring the urine from room temperature to that ideal 90-99℉. It will take about 45 minutes.

Most packs will keep your pee warm for a few hours. The ones that last the longest usually maintain the best temp. Always make sure to check the temperature before using your sample to ensure it is in the safe zone.

If hand warmers are too complicated for you, or you don’t know when exactly you will need the product, there is another way to keep the synthetic pee warm.

Body Heat

Body Heat

We all have a body, so this is the easiest and most discrete option. Also the cheapest, which is awesome. You want to place it in the hottest area of your body.

I bet you can guess where that is (wink, wink). For males, that’s near the genitals or upper inner thigh. Just place in the underwear for easy carrying or purchase a Synthetic Urine Strap that holds the bottle.

You can also use the your body heat at the same time to ensure a quicker heating process. Maybe doing some jumping jacks and lunges will help, too? Wouldn’t hurt!

Heating by body heat is the longest lasting option, but maybe not the most comfortable. It is also the most private and available option. You can wear every day if needed. It will take the most time to heat up, so give yourself enough time for your body to do the work for you.

With all these choices, always follow the directions with the product, test the temperature before using the sample, and give it a good shake. Shaking it provides those realistic bubbles.

Keeping that all too precious pee at the right temperature is nothing complicated. You’ve got this! Thankfully there is a range of acceptable temperatures.

Microwave, hand warmers, or your body, will all assist you with warming up your synthetic urine, whenever the need arises. Use one option or all three. Give them a try and see what you prefer and what works best for you.

Now that you know everything about keeping that sample ready for use, check out our Quick Fix 6.2 and Disposable Heating Pads. Grab some brownies and get to shopping. We’ve got your back.



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