How to Store Urine for a Drug Test

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Each one of us has a few things that make life suck big time. For a stoner, nothing does that more than having to take a urine drug test now and then.

If it’s hard for you to resist the urge to toke or if you feel that THC is so concentrated in your system, you could have a friend donate some urine and give that whenever your employee, doc, or parents want a sample of human pee.

The problem, however, sets in when you want the urine to remain viable for, let’s say, a day or 2 or even several weeks or months.

The thing with human urine is that its components start getting out of balance almost immediately due to bacterial action.

This means that you’ll need to come up with a proper way to store it if you won’t be handing it over for testing within the next hour.

The saving grace with human urine is that it can be stored for up to 6 months.

But how you store it is what determines its long-term viability. And that’s what I’ll be showing you in a few minutes.

If you are looking for a fast, safe and legal method, read this article: How to Pass a Drug Test in 24 Hours

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It starts right from collecting

Whether or not a urine sample will be acceptable for testing starts right from the collection point.

When collecting pee, it’s important to ensure the utmost care to prevent contamination with foreign agents that might lower your chances of passing the test.

collect urine

Dirt and sweat from hands, for instance, can easily interfere with several vitals such as pH and specific gravity.

The cleanliness of the storage container or bags also matters a big deal (we’ll talk more about this in a moment).

Besides ensuring the utmost purity of the urine and thereby increasing the viability of the preserved sample, keep in mind that urine is regarded as a biohazard.

As such, proper collection is the start point of a series of steps that are necessary for handling it to prevent food contamination especially now that you intend to store it.


What you store the urine in is of utmost importance too.

You could use either a re-sealable bag or a bottle depending on how long you intend to store the urine.

A re-sealable bag will fit the bill if the test is scheduled within 24 hours from the time of urine collection.

If you are refrigerating or freezing the urine for more than a day, a bottle might be the best way to go thanks to the reduced risk of leakages.

frozen urine

Frozen Urine

Speaking of bottles, the type (glass or plastic) and size are other considerations to keep in mind too.

An 8-ounce water bottle might fit the bill if you’ll be freezing the urine for a month or 2.

If you are storing the urine longer than this, you’ll need to go with an 8-ounce glass bottle since it offers the best airtight seal.

Should you use a larger bottle?

Well, there’s no limitation on the amount of urine that you can store.

However, 16oz is way too much not unless there’s no possibility of ever getting clean urine for a long time.

The limitation to storing so much urine is that you can’t refreeze the remaining amount once you have thawed/heated it.

When and how to store it

Urine that is meant for immediate testing should be handed over within the first 4 minutes.

This is a regulation by the Department of Transportation (DOT) that ensures that the urine submitted for testing is within the required temperature range (around 98.60F (37c) on average).

On your body

If you’ve just collected the urine from your donor and you intend to hand it over for testing in an hour, you won’t necessarily need to refrigerate or freeze it.

What you need to worry about is how to maintain the temperature within the acceptable range (between 90F and 100F (32c and 38c)).

The best idea here would be to store the urine in a re-sealable bag and then place it close to your body to ensure that the fresh sample won’t lose heat.

The most practical area to store it is around your thighs.

Placing it under the breasts also does work (for the ladies) only that it might be hectic to get out, that is, if you’ll be collecting the urine in an observed environment.

When to refrigerate

If the test is scheduled anywhere between 24 hours after urine collection, refrigeration becomes necessary.

The importance of this is to keep the temperatures at around 39 degrees F (around 3.8 degrees Celsius).

This prevents bacteria proliferation (rapid increase) that would otherwise increase urine breakdown thereby getting you some unwanted attention.

When to freeze

As I told you earlier, it’s possible to store human urine for periods of up to 6 months without losing its viability.

Storing it for such long periods might be necessary, for instance, if you are currently clean but you are planning to start using some drugs that you are constantly being tested for.

In addition, you might want to freeze the urine if you intend to stop taking some prescribed drugs (pain management medications, for instance) that your doctor will be testing on regularly.

Whether you are freezing or refrigerating the urine, it’s important that you label it correctly.

This is important especially if there are several other people who will be storing their urine in the same refrigerator or freezer.

When it’s time to submit a sample

Whether you had frozen or refrigerated the urine, you’ll need to come up with a way to warm it to the required temperature range since you cannot submit it as it is.

With frozen urine, it’s always advisable to leave it out to thaw at room temperature.

Depending on the volume of the urine, the urine should thaw completely in 10-15 minutes.

It’s usually so tempting to speed up the thawing process by heating the urine in the microwave for a few seconds and most sources recommend it by the way.

urine in microwave

You could do it.

But you need to be very careful since the risk of overheating and ruining the quality of the urine is very high.

There are several other safer ways of warming urine for a drug test other than heating it in a microwave.

The most common is using a heating pad.

These are disposable pads that heat and hold urine at the required temperature range until you are through with the test.

Recapping it

Whether you are trying to keep a bag of urine warm for use in a few hours or if you want to store it for a few months, all the nitty-gritty details from the collection point to how you thaw it matter a big deal.

It all boils down to ensuring that the sample is not contaminated along the way or giving the bacteria in the urine a favorable condition to proliferate and break down the components of urine at a higher rate.

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  1. Sue says:

    Will the glass jar break freezing it?

    • Sam says:

      I don’t think it would as long as you don’t fill it too full so it can expand while freezing but maybe a sealed bag would be better just to be safe

    • Mi says:

      Thanks I am a mother and very busy! This helped me alot!

    • rdream says:

      Perhaps you work for a company that requires routine standard drug tests, or perhaps a drug test is a condition of a legal settlement. A drug test might use a sample of your urine, hair, blood, or saliva. It is to your personal and professional benefit to test negative for drugs in your system. The best way to pass a drug test by far is to understand how long drugs remain in your system and discontinue drug use for the proper amount of time.

  2. Luly says:

    Can you refrigerate urine?

  3. scooby drew says:

    Can I leave urine out for 5 hours before heating it up to temp?

  4. scooby drew says:

    I just unfroze clean urine at 10:00 am the test is around 2-3 pm am I letting it sit out too long or will I be ok?

  5. Jennifer says:

    I’ve stored some pee in a pill bottle, wrapped up in a bubbled manilla envelope (dark and cool) for about 3 wks. Can it be used for a UA?

  6. Seamore Snicklefritz says:

    I was just browsing and thought I would share my experience as to what I do.

    I have to drug test once a month most of the time, so I make sure I am clean and all my correct meds are in my system then piss in a clean container and freeze it. Then nuke it 10 sec day of the test and store in a body spot next to skin then go to Dr or wherever u test at. Or if u wanna be clean from all and u have smoked or something else go to most head shops and pick up S5 Synthetic 5 Urea Uric Acid pee complete kite, warmer, temp strip warms to 100 f.

    This is the best synthetic urine on the market it has worked for me years and years. I work under Dot guidelines and can not have THC in me. Another thing is if you are crying to pass a piss test for a pain doctor you can use the same test kit mentioned above and take about a quarter to a half of one of your pills and crumble it up real fine and put it in the bottle of urine shake it really well and turn it in it will show up just like it came out of your body. They just tested me and sent mine off to the lab last month and mine came back just like it’s supposed to.

    If anybody tells you anything different about the above kit it is BS because I have been driving a truck for 25 years and I do smoke pot occasionally never when I’m driving for those who are going to criticize me. When I get home if I want to smoke I do and I use this kit and have never ever had a problem. Some people were saying that you could not take a pain tablet and crush it up and put it the bottle of urine it wouldn’t work but that’s not true.

    Sometimes the extended release does not dissolve all the way so you want to make sure this is done before you leave home so it’s properly dissolved but anything that is not extended release works just fine. You get what I’m talking about if you aren’t trying to get around certain things

    • Just wondering says:

      I see a lot of comments about heating urine up after it is frozen…my question is…I’m getting clean urine from another individual and going in for an employment test…do I need to heat it up also before placing it against my body to take it into the testing place?

    • Marley says:

      Ive heard the exact same thing from a lab tech just as you said. He said to buy some Quick fix. 6.2 and add slivers of morphine & hydro and ill pass. On occasion I will use a Zanny. Ty

    • PJ says:

      If you’re on pain management and taking meds and try crumbling it in a container of urine it won’t work because the medication produces metabolites in urine and that is what they are testing for as well as other substances.

    • X says:

      When u have a clean urine and have to put ur med in it, u crush n drain urine thru a coffee filter with crushed med on filter into a medicine bottle. Use rubber band to keep filter around bottle. Then the med comes up like u took it.

    • Jamie says:

      LMAO! Had to say my grandmother would crush up a pill to put in her urine sample before going to pain clinic. She done it for a while man.

    • Diabolical0ddball says:

      Does all synthetic urine work for DOT drug tests?

  7. Anonymous says:

    What if you HAVE to have hydrocodone and diazepam show up but want to make sure THC or CBD Do NOT show. Had hoped that one could store a sample when levels of hydrocodone and diazepam were correct, but before ingesting any THC. Then at some later random date after ingesting THC be able to pass test for meds but not show any THC / CBD.

    Had thought freezing urine ought to work if prepared properly and submitted properly, but it doesn’t sound like that will work; i.e. the sample won’t pass the ‘fresh’ test after even a relatively short period, say 24 hours. Is that the case. No way to keep for several months?




    • Jamie says:

      You’ll be okay man.. Ive used old stinky piss several times that was weeks old. I go to a methadone treatment program and test on regular basis and have to have methadone in my system . Similar to your situation. I fill a bottle up and it will last a couple of months man. I also have never refrigerated or frozen. And i have used a sample that had been pre heated a time or two.

      • Shelly says:

        This is the EXACT info I was looking for! I go to a methadone clinic here and had to pee this morning but grabbed the weeks if not months old bottle of pee instead of the fresh one! I was so worried because it was pretty dark and smelled awful, but they don’t even store their samples in the fridge, so everyone’s pee has to get old and stale too….just not quite as old as mine! But you DID pass? How dark was the urine you used?

        • jay says:

          my situation is the same. hydro and valium must show up but no THC. I stored in the fridge for 2 months and had to use it today. there was no thc in it when i stored it, valium and hydro was in the urine sample that I stored after my last visit. will the hydro and valium metabolites show up on the test after 2 months in the fridge? when I used it today it was clear, not to strong. I need to know the metabolites will still be detected? thanks

  8. A- says:

    How can I store my urine for more than 24 hours? My test is Tuesday at 10 am and it’s Sunday

  9. NOLINE says:

    I just got a sample of my lil sister urine at 7:30 I PUT IT IN THE FRIGDE AT 8:40 I HAVE TO TAKE A DRUG TEST THE VERY NEXT DAY AT 8:30AM WILL THE SAMPLE BE GOOD TO PASS

  10. Anonymous says:

    I didn’t see an answer for this question so my ? is should I freeze my pee after 24 hr.s of being in the fridge & do I use a glass bottle or a plastic bag to store it? I have it in the fridge in a plastic bottle & need to move it…what should I do? when should I start to defrost it before I use it & is it true that the microwave will ruin it? I finally found a site I can remain anonymous, I was wondering if we still had the right? glad to see we do!

    • Anonoymous says:

      I have used urine I’ve kept in the refrigerator for about 5 days and it was fine. I got it to body ten by using 2 Visine or Tears for contacts under my breasts. They are perfectly at body temp. The rest I froze. Trying to pass clean for benzo’s. !

  11. Aaron L Clinton says:

    How long can urine be used for testing for a later date?

  12. anonymous says:

    so I have a drug test tomorrow at 5pm I go into work at friend is giving me per before I go into work… what process should I do? I do have a whizinater to keep it 99 degrees all day… help!!!

  13. james says:

    I missed my pain doc appt there giving me one in 3 days ran out of oxy. My wife said take my hydrocodone said i wont’ pass pain doc test can i store my pee today 9: 15 for 2:30 test tomorrow terrible shape im in need to take her hydro also the give me a new test 2 mouths ago it test the ginnetic or my urine so the know its nine the biled my insurance 3,000 bucks

  14. Anonymous in need of advice badly says:

    Hi I have a couple questions hoping to get answers fast if possible

    I want to know what is the best type of container to store pee in the freezer ?
    Do I automatically put it in the freezer soon as I get the clean sample ?
    Will it be good for two weeks after that ? I have a random test coming up and I know for a fact it’s within this Two week time frame.
    When I unfreeze it will it ruin it I put in microwave ? If not about how long do you think ? Or should I just let it unfreeze by itself like take it early ? Or what is the correct way ?
    After it unfreezes and I take the sample warmed up let’s say it’s not the day when I get back do I need a new sample or can I restore? I imagine I cannot restore it and need a new one .

  15. Monaye says:

    So I’ve been holding per at room temperature for 5 days now and I know it says the bacteria will multiply, but how will that affect the results of my drug test?

    • Jordanmcd says:

      I’m wondering this same question, with 3 days old of room temp

      • Jamie says:

        I’ve used urine weeks old that was stored at room temp.. Never had a problem. I have a bottle I will be re heating and taking in Tomorrow that is a month old at room temp .

        • Swim says:

          I peed clean in a water bottle and used it for 2 months straight (I get drug tested 1x/week). The last test I took tested positive for alcohol—- my urine fermented! And that’s what caused the failed drug test!!! I would say don’t use the same pee for over a month I do not want anyone to learn the hard way like I did!!!! Best of luck!!!

    • Anonymous says:

      I once held my urine at room temp for a week and then used it for a UA. Everything came out the way I was supposed to. I have no idea what kind of test they do. I submit it to my doctors nurse and they send it out to a lab who does the testing. Then they get the results online and upload the results. I’ve done that twice and was too afraid to store my urine in the shared fridge and freezer.

      • Sue says:

        I had it in fridge for a week. It passed the freshness test. Wasn’t discolored n didn’t smell stronger than normal. So I used the inside of my body to warm it up and I passed without any issues. N it was done at the hospital in their lab.

  16. Andrea says:

    I have wondered about the opiate panel. I’ve been prescribed oxycodone for the past two years now. Can someone please tell me why it hasn’t shown up on any drug test results for me. It’s the on my opiate I take but it doesn’t show up in my UA results. It’s perculiar. Thanks

    • Anonymous says:

      If you have ever submitted a valid and active prescription for what you take, it tests positive but comes back from the lab as a negative test result. I’ve had that come up at my job before. As long as the lab and or job has the info from pharmacy then you won’t have a problem.

  17. Thor Odinson says:

    Is it ok to store my sample (collected daily around 730am) inside an insulated thermos while I work my daily shift (until 430-6pm). I have nowhere to refrigerate it nor can I risk having to try to get it warmed back up if a test is dropped on me randomly. I’m probably heating my thermos water a little higher than body temp maybe like 110* so that after a few hours, the time most likely to be tested, the temp is closer to 98*. How long can I store at temps close to body temp? Any indications to look for that could indicate the sample has gone bad?

    • Anonymous says:

      The last time i had to test I had a friend donate a clean sample in the morning put it in a stelized plastic bottle kept it on the counter in a glass of slightly above body temp water 20 minutes before my test tucked it somewhere not very comfy but kept warm till test, passed like a boss

  18. Anonymous says:

    I put my P in the mouthwash plastic bottle it smelled like mouthwash but I cleaned it out real good with the lab pick that up

  19. Max says:

    So I used some saved urine that i obviously did save correctly. Had in a coke bottle for a couple of days before i used it. I took my test around noon they send them off around 4 to the lad and get the results the next day. So I’m not sure how my results will turn out.

  20. Paul says:

    My parents test me randomly, and always test me in the same bathroom, I was planning on saving the piss in a container, in the bathroom. They use a cheap test, u can get a pack of 16 strips for 16 bucks. Will this work on the cheap stuff u refrigerated, or will I have to think of another plan. (I’ll keep it in there for around 7 days at most)

  21. Jack in the box says:

    Ive been using clean stored urine that i keep refrigerated. It hasnt failed me yet. Ive submitted at least 7 samples and all negative until the last week. How could it test positive all the sudden?

    • Julz says:

      this happened to me.. was the test sent out to lab or tested on the spot? my understanding is the instant tests r testing for traces of the drug, like if u had some residue on ur hands or on container and it contaminated it in any way it could’ve tested positive.. however when it’s sent to the lab i am to understand they test for the metabolitized drug.. which shows it was metabolized thru ur body. My urine tested positive on the spot so i demanded it be sent out and when it came back it was negative… now that could mean i’m correct in what i said or that in the lab test the residue that contaminated my specimen was too low of an amount to be considered positive.. hope this helped.

  22. Monique Johnson says:

    Can you store urine in the fridge for over a month?

  23. Recovering addict needs help says:

    So i have urine in fridge now i messed up and cant afford to get in trouble for this I’ve been clean for a year now but I’ve never done this before I dont know how to rewarm , carry it and keep it warm and most of all how much suboxone do i need to put in the urine too pass. There strips by the way. Also just so nobody thinks I fell completely off the wagon it was Methylphenidate

  24. Any says:

    First off no one answered whether or not how long you could keep piss stored and still pass for just the cup if they arent sending it to the lab does it really matter how long u keep real piss and how its stored?

    • julz says:

      yes because the color and the smell is a dead give away that it didn’t come out of your body after some time.. they do not have to accept the pee for a instant test. most places are required to inspect for such things. you wouldn’t even know they are inspecting it. There is no denying the terrible odor of old pee.

  25. Lee says:

    If i have it in a sealed plastic tubaware will that work?

  26. Tiff says:

    What temp does the pee need to be at?

    • No Name says:

      90-100 degress the closer to 96ish the better. Body temp is 98.6 so by the time you hand over the sample at a lab it will have dropped a little bit. But they should still accept anything between 90-100.

  27. Mark says:

    I recently bought sub solution spent a bunch of money on it sworn I was going to pass beside of al the positive reviews…prepped it and wasn’t able to make it to quest in time so I was turned away. Fearful I called the company and asked if it would be ok if I used it the next day she said yes just refrigerate it. Well I fucking failed and I really needed the job bad. Took forever to get the results and finally after more than a week they said it was “tainted” and I didn’t pass. So here I am still unemployed but I am basically at a point where I have to use my sons pee. Maybe I should of done that the first time. I’m very skeptical now I have a quick fix bottle that I poured out and planned on storing my sons urine in it the day before the you think that bottle will keep bacteria out? If I have it in the fridge sealed tight…what if I have to fill it up multiple times if I immediately seal it again until I’ve acquired the amount needed will it fill with bacteria that fast? Please help me I need to make sure this time I pass 100%. Thanks.

  28. Anonymous says:

    I have monthly drug test I have to do. I know when they come and what time. Could I store pee for a month and still test negative?

  29. Kk says:

    I nuked my frozen urine for minute half 30 sec at a time had 2 20 20 minutes to cool down well I passed

  30. Concerned says:

    I’ve had clean urine that I thought I didn’t need stored for over a week in room temperature, now all of a sudden I have a drug test coming up and can’t get anymore pee. Because I never froze it….will I still pass a drug test?

  31. Monae says:

    I was wondering will the synthetic urine bought frm a Smokeshop Work for a UA that will be sent off to a lab for a DOT job ?

  32. Disaster says:

    I just stored my urine with suboxone in the freezer my test is in 2 days will it still come out good? Also I do not have access to a microwave can I just let it thaw out on it’s own by placing it on my body really early in the morning? My test is @ 2pm

    • Jamie says:

      I wouldn’t even freeze it you don’t have a microwave thata way you’ll be that much closer to getting it to body temp. Also your test is so soon.. I would only freeze urine if you plan on keeping it weeks or longer.

    • Gevin says:

      Hey how did ur test go with the suboxen in ur urine??

  33. Peter Pipedher says:

    If you are bringing a sample with you, I’ve found the best thing is a nasal spray bottle, which is kind of like a big visine bottle, and it’s pretty flat so you can carry it against your body, (I usually put mine in my underwear, between my legs) AND I pee on the OUTSIDE of the test cup to ensure the temp reads correctly. Every 10, 12 panel test I’ve ever encountered will record the temp even if you pee on the OUTSIDE of the container. You still want to make sure your sample is in the basic area. Dont think you can put a cold sample in there and just urine on the outside, but it will only help if you are concerned about temperature the day of your test. Hope this helps someone!

  34. Anonymous says:

    Can a plastic bottle be used for store pee in??? ????????

  35. Anonymous says:

    Can a plastic bottle be use to store pee in for a drug test?? ????????

  36. Anonymous says:

    Can you freeze urine with percocet in it and pass

  37. Karen Summer says:

    You can leave a urine test in the fridge for four days and then store it under your breast for

  38. Anonymous says:

    I am driving two hours to pick up the urine. So 2 Hour drive back home so should I put the urine that would be inside of a prescription pill container in a cooler for the drive home? Or can I drive two hours and then put it in the refrigerator? Also, after putting the pill container inside of a Ziploc airtight bag and then put into the refrigerator, how do I reheat it to get it to the correct temperature for the test which is at 9:30 AM the next day?

  39. Michele says:

    I have urine from last night. I refrigerated it over night, but have been at work all day and kept it in my pants. I expect to be tested around 6 pm tonight. Will it be ok?

  40. john says:

    What excuse could you use if you have saved urine from roughly 24 hours and it smells bad?

  41. Tina says:

    I had someone give me there urine yesterday around 11:30 am I test today at 2 pm I’ve had it stored in my purse in a bottle they dont check temp. Do y pl u think it will still be okay to use

  42. Anonymous says:

    New patient appointment tomorrow AM have to be CLEAN of EVERYTHING. Have a person donating clean urine.Should I have them pee tonight and tomorrow and mix together? Also, will it stay at temp if I double bag it in ziplocks and tape inside panties? PLEASE HELP I desperately need to pass this.

  43. Anonymous says:

    I have a new patient Appointment tomorrow at 2pm.. but I got donated pee tonight. I’m have it in the fridge now I’m 2 separate bottles just in case.. I just hope it reads right and I pass

  44. dd says:

    Hoping i pass this pee test , Cause if so never plan on trying to beat it again , Cause losing my feel better meds ain’t worth it ,, So wish me luck !!

  45. Anon says:

    I need to show positive for oxy in 4 days and I only have 1 dose left. I’ve stored pee in the refrigerator today (Saturday). I was thinking of taking my last dose about 4 hrs before my drug test (Wednesday). I was thinking of using some of what I have refrigerated to add to a fresh sample I give on the day of testing. Does anyone think that would work? I want to make sure my sample had some of the qualities of fresh pee.

  46. Magillakudi says:

    I had some frozen piss in a jar at home i have a piss test for suboxone clinic in the morning before i left home at 9 for work i sat it out on top of the counter to thaw. My test is at 845… will it still be usable?

  47. Jamessmack says:

    I leave my clean urine in separate 1.5 to 2.0 oz containers in the night before I place in the fridge. Take them out and make sure they are in small very quality flip lid tops and duct tape small hand warmers around the whole container. This is very important to take the warm from around the container minutes from testing and place somewhere very close to your skin so it can regulate to 98.6. I’ve done this at least 50+ times and it’s never failed me yet. Good luck

  48. Anonymous says:

    If I put pee in a container small enough to fit in my vagina will it be warm enough to pass a drug test

  49. Daniel Miller says: