Updated: 2023 May 14.

The Best Methods for Storing Pee for an Upcoming Drug Test

Harry Olson, Edwin Manion and Dale Porter
PMID: 6503016506 DOI: 10.1s6500072650

You can store urine in the freezer for up to six months. However, if you prefer to keep it in the fridge, you can only store it for up to 24 hours.

Storing human urine can be risky as it can spoil easily.

But don’t worry, we’ll tell you how to minimize those risks and keep your urine fresh for a drug test.

Disclaimer: The Risky Business of Using Someone Else’s Urine


We must emphasize that we do not recommend using someone else’s urine for a drug test.

You never know what drugs the person may have actually used, even if they think they’re clean.

For instance, cannabis metabolites can stay in the body for a long time, even if the person smoked it weeks ago.

Additionally, human urine spoils quickly, and if it’s not stored properly or submitted at the right temperature, it will be detected during the drug test.

So, avoid taking the cheap shortcut of using someone else’s urine.

Can You Use 3-Day-Old Urine for a Drug Test?

You can only use 3-day-old urine if you’ve stored it in the freezer. Refrigerating it will result in spoilage due to bacteria growth.

Below is a photo comparing fresh urine to urine that has been refrigerated for 3 days. As you can see, the urine appears cloudy and the presence of bubbles indicates a significant amount of bacteria growth.

fresh vs 3 days old urine

Keep reading to find out how to properly freeze urine.

Choosing the Right Container for Storing Urine

When it comes to storing urine for a drug test, the type of container you use is crucial. You’ll need at least 30ml of urine for a drug test, but the Department of Transport requires 45ml of urine. The best option is to use a 50ml plastic bottle.

bottles for storing urine

Visine bottles are too small, just 15ml, and big plastic bottles are not good because there’s a lot of air, and there are more chances that the urine will spoil. Another reason for using small bottles is the drug testing procedure.

Before the drug test, you will be required to empty your pockets and remove unnecessary clothes like hats, jackets, etc.

The collector will look through your items, and if he finds something intended to cheat the drug test, you will be required to go through the directly observed drug test.

Collectors are aware that visine bottles are used to bring urine to drug tests, so you need a small bottle that you can hide discreetly on your body.

By using a 50ml plastic bottle, you can avoid any issues during the drug testing procedure and store your urine securely.

Collecting Clean Urine: The Right Way

Urine can spoil quickly because of bacteria in urine and air, so the room for collecting must be as clean as possible.

To prevent bacteria from your hand getting into the urine, use vinyl disposable gloves. Pee in a bottle and close it as fast as possible to avoid contamination.

synthetic urine bottle and gloves

The best option is to put the urine directly into the bottle that you will use for the drug test. Pouring urine from one bottle to another will add bacteria to the urine and increase the chances of spoiling.

By following these simple steps, you can collect clean urine that is ready to use for a drug test. It’s important to remember that proper storage and handling of urine is crucial to ensure accurate and reliable drug test results.

How to Store Urine

First, decide how long you need to store your urine.

For short-term storage (up to 24 hours), you can keep it in the fridge. For longer storage, you’ll need to freeze it.

What Can Go Wrong?

Refrigerators contain bacteria from various foods, which can contaminate and spoil the urine.

If you bring spoiled urine to a drug testing facility, it will be rejected.

That’s why it’s crucial to keep everything as clean as possible, including your fridge.

How to Warm Urine for a Drug Test

Incorrect urine temperature is the main reason people fail drug tests when submitting synthetic or someone else’s urine.

If the specimen temperature is outside the acceptable range, the collector may suspect tampering, and you’ll be required to undergo a directly observed drug test.

The urine must be between 97-100°F, and you should submit the sample within 2 minutes to prevent it from cooling down.

Here are two options to warm urine before a drug test:

heat activation powder vs handwarmers


Handwarmers are a good option but may fail in rare cases. It will take about an hour to heat the bottle to the required temperature. To save time, you can preheat the urine in a microwave.

How to Use Handwarmers:

Activate the heat pad and attach it to the sample.

  • Tuck it securely into your underwear to keep it warm and hidden.
  • Use a stash leg belt or special underwear for convenience.
  • Upon arrival, check the temperature just before going in. If it has cooled, use the second heat pad to restore the temperature.

Heat Activator Powder

Heat activator powder is another option for warming urine. It raises the temperature within seconds, making it more reliable than a heat pad. However, it’s not easy to find and is typically included in high-quality synthetic urine kits.

How to Use Heat Activator Powder:

  • Add a small amount of powder to the urine.
  • Check the temperature using a thermometer or temperature strip.
  • If the temperature is within the required range, proceed to the testing facility and submit the sample.
  • If the temperature is too low, add more powder, but be careful not to overheat the urine.

Think Twice

If you’re facing a drug test and considering submitting your own clean urine or someone else’s, think twice. You can’t be sure that the urine is unspoiled until it’s submitted.

If passing the drug test is essential for you, for instance, if you want a high-paying job, then you need to consider using high-quality synthetic urine instead. It costs only $85 and will allow you to pass the drug test without any hassle.

But, you need to ask yourself, is the $85 worth the risk of failing the test and going through direct observation procedure?

Best Synthetic Urine Kits to Pass a Drug Test Without any Risk

Here are the best synthetic urine kits on the market today, designed to help you pass the drug test without any risk.

Sub Solution – High Quality Urine for Best Price

sub solution synthetic urine
Sub Solution is the bestselling and overall best synthetic urine kit on the market today. It offers the perfect balance between price and product features.

Containing at least 11 chemicals found in human urine, Sub Solution includes heat activator powder to ensure that the urine is heated to the correct temperature before submission.

The best part? It comes at the best price $90.

The only downside is that you need a place on your body to hide the urine bottle, but you can easily put it in your underwear or use special urine holder.

Incognito Belt – Best Stealth Solution

incognito belt

If you’re looking for a premixed synthetic urine solution, Incognito belt is an excellent option. It comes with enough synthetic urine for two uses, as well as two heat pads to maintain the correct temperature.

The velcro adjustable discreet belt allows you to hide the urine on your waist, and the rubber tube and convenient clip enable you to deliver the urine discreetly even when supervised.

While the price is a little high, the Incognito belt is a great investment to pass your drug test without any risk.

The Urinator – Belt With Electric Warmer


Another fantastic discreet belt with high-quality synthetic urine is the Urinator. It includes a computerized digital controller that maintains the correct temperature and is sealed to prevent electrical shorting.

Although it is from a reputable company, the price is high, and I personally don’t see the reason to pay so much.

If you’re facing a drug test, you don’t have to worry about failing it with these synthetic urine kits. They’re easy to use, effective, and guaranteed to help you pass without any risk.

Articles provided here courtesy of MSI-COPS