Imagine having to take a drug test, knowing that you may have drug metabolites in your system. The level of anxiety and stress you may experience is out of this world, and since no one wants to fail a drug test, if they can help it, you will try and find ways to beat the test.

Most stoners will request a friend to help them out by having them donate their pee to them. This pee will then be stored and used on the day of the test. A lot of people are finding this to be the most efficient and safe way to pass a test, but this method has its downside.

First, you need to be careful about the type of sample you will use. Ensure that the friend providing their urine is clean and does not have any drug in their system. The most crucial process after finding the person is finding the right way to collect and store this sample.

Urine Sample Collection

Collecting the urine is the first and most critical step in the process.  Urine is most likely to be contaminated by bacteria, which may cause the composition of the urine sample to change, and you may end up with inconclusive results, which will force you to take another test. When collecting the urine, you will need to be very careful about how you handle the sample.

To ensure that the urine is not contaminated, the storage option you choose should be very clean. It is also necessary to use gloves while handling the containers or bags to prevent the sweat from the hands from contaminating the urine. Since urine is considered a biological hazard, make sure that it is stored in a safe location so that the urine sample does not contaminate other surfaces.


Urine Sample Storage

Since this is the defining factor of the whole process, how you store the urine sample is eventually going to affect the results of the drug test. The storage option you will use will depend on the amount of time you have before the test. The further away the test is, the more airtight and safe you need your storage item to be.

The best option for storing a urine sample in the refrigerator will be to use a container, as a bag has higher chances of leaking. The sample amount you need to store is entirely dependent on the sample amount you want, but it’s better to have more than you need in case of accidents such as spilling when you are handling the sample.

Containers that are used to store the urine may be glass or plastic. But a glass container is recommended if you want a urine sample for a later date. This is because it offers a more airtight seal compared to the plastic container. In storage, use an option that will ensure very minimal contamination of the sample, if any.

How to Store the Urine

The required temperature range for urine samples is 37 degrees Celsius (98.6 degrees Fahrenheit). There are a few ways you can store the urine:

  • On your body—this is efficient if the testing is intended to be done shortly after you have received the urine sample. Your only worry will be maintaining the temperature of the sample at the required range. To best maintain the temperature of the sample, store it in a sealable bag, and place it between your thighs for it to maintain the required temperature.
  • Refrigeration—if the test is to be done 24 hours after you receive the urine sample, it is best to refrigerate the sample. Ensure that the sample is kept at 3.8 degrees Celsius to prevent contamination and that the sample is stored away from food items.
  • Freezing—since urine can be viable for up to 6 months when stored correctly, freezing is a good option for tests that are intended to take place later. If you are planning to have some weed for a long period, you may want to freeze the urine sample for later use.

Submitting the Urine Sample

To pass a drug test and avoid rising suspicions, the urine sample should always be at the required temperature. Therefore, you need to warm up the sample. This can be achieved by popping it into the microwave. The sample should be hot, but cool enough that you can hold it in your hand. Hide the sample close to your body to keep it warm, but it would be better if you used a disposable heating pad.


How you collect and store the urine sample is critical if you want to pass a test using a donated sample. Your main objective is to ensure that the sample is not contaminated to enable you to ace the drug test.

Passing Probability Calculator

Use the world’s only data-driven marijuana drug test passing probability calculator in order to determine your odds of passing a urine drug test. With over a decade of research and development, this is the only application that can provide an accurate answer to how long cannabis can be detected in your system:

Marijuana Drug Test Calculator

The calculator graphs your Passing Probabilities vs. Days for untampered and diluted/detoxed urine. View Patent US 13/866,015 for more information.

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