Cold Water Extraction

The Cold Water Extraction process, also called CWE for short, is a widely used health improving practice that can be applied to any medication (mostly painkillers) that contains opioids, like codeine, mixed with a light pain reliever like paracetamol or aspirin (which heavily damage your body in higher quantities), with the goal of extracting the opiate and discarding all the other harmful substances.

Cold Water Extraction is Used Medically and Recreationally

Cold water extraction is used by both medical and recreational users, the first being people that want to protect themselves from these very taxing substances (especially for your liver) or that while having liver problems still have to safely take the medication and the latter being people who want to enjoy the effects and sensations that opiates provide in a much safer way, purely for personal enjoyment.

Cold Water Works Wonders

Cold water is the reason behind the process working incredibly well because:

  • Opioid substances are highly soluble in water
  • Paracetamol, ibuprofen and aspirin (the unwanted substances) are nearly insoluble in water, especially when cold

As such, by crushing the tablets into a fine powder, mixing them in water and then cooling the solution, you can easily separate the unwanted substances which stay solid and sink to the bottom while the opiates stay dissolved in the water. Then, by using any sort of screen, like a coffee filter, you can pour the water solution into it, quickly discard the solid residue and drink the final water solution which contains only the opiate and a few other harmless substances.

Cold Water Extraction Is Legal

Performing a cold water extraction is absolutely legal.

The tablets you choose to apply a cold water extraction on always contain an opioid substance that, depending on where you live, may have a different schedule than the unchanged tablets themselves. For example, tylenol 3 is rated schedule 3 or 5 but the opioid that it contains, codeine, is a schedule 2 drug.
This schedule difference only applies if you have a pure opioid substance, which doesn’t happen with cold water extraction (although it can come close, depending on how well you perform and filter it). Furthermore, the end solution of a cold water extraction is the opioid mixed in water, not in tablets or powder form.
There is absolutely no reason to worry about the legality of CWE, it being a process even taught in college level chemistry classes as a standard technique in quantitative chemistry (it is part of the educational curriculum).

Our Opinion on CWE

As long time users and consequently experts on cold water extraction, we think it’s an extremely healthy practice that everyone should start doing – no matter the reason (medical, recreation, prevention). It can prove extremely hard or even impossible to get prescribed an opioid, like Codeine, without any added substances especially outside of the United States. Most patients get prescribed painkillers that contain the toxic substances mentioned before and while we understand that pharmaceutical companies do this to either lower the drug’s schedule or to prevent people from abusing the medication, it doesn’t make it any less vile to put people in harm’s way for that reason alone. Many of the cases of hospitalization (and death) related to this type of prescription drugs are from people who, without knowing the dangers of paracetamol, take a higher dose than the recommended and overdose on it – leading to heavy liver damage.
All we want is to prevent this issue, which is possible by performing a simple cold water extraction before taking medication that falls in this category. The simplicity, speed and effectiveness of CWE makes it the very best solution to this problem, all that’s needed is for people to get introduced to it (as most painkiller users don’t know about the method)

Rated and Reviewed by Professionals







Cold water extraction greatly reduces the harm done to your body by common painkillers while still letting you benefit from their desirable effects, without any loss of potency.


The cold water extraction process is quick and easy to perform, especially if you follow our recommended method.


Applying a cold water extraction greatly reduces the amount of harmful substances present in tablets that contain opiates, nearly eliminating them if done right and filtered attentively.

  • Substantially improves your quality of life
  • Prevents medical issues related to paracetamol/ibuprofen/aspirin from appearing
  • Lets users who already have said issues to keep taking their medicine without taxing the affected organs
  • Highly reduces (nearly eliminates) toxicity and overdose risk of paracetamol (also called APAP or acetaminophen), which is linked to about 500 deaths and 50,000 hospitalizations each year

It's incredible, truly. Never before have I been able to take painkillers without feeling sick or ill due to the paracetamol side effects. For someone that suffers from severe pain often, it's life changing.

Clara AndersonMedical CWE User

As an opiate user I've always worried about the harm that paracetamol could do to me, that changed when I found you guys. You made me able to relax while knowing I'm safe. That's what CWE is to me, safety.

Leonard BridgesRecreational CWE User


Now that you know the very basics of what a cold water extraction is, make sure to read our in-depth articles about the process and the substances you can extract with it.

You can also kickstart your learning with our brand new cold water extraction infographic.
It summarizes the essential introductory keys from the more in-depth articles below.

The Essential

What Is CWE?

Clear any doubts about what cold water extraction is in our in-depth article.

What Is CWE

The Very Best CWE Method

In this essential article we teach you the very best cold water extraction method in a quick and easy way.

Best CWE Method

Does CWE Work?

Read our extensive article on the what who how and why cold water extraction works.

Does CWE Work

The 3 Main Substances


Learn everything about Hydrocodone, including brand names, and how to extract it with cold water.

CWE Hydrocodone


Learn everything about Codeine, including brand names, and how to extract it with cold water.

CWE Codeine


Learn everything about Oxycodone, including brand names, and how to extract it with cold water.

CWE Oxycodone

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Join the discussion 29 Comments

  • Jesse says:

    Incredible job guys, the quality of your articles is just mind blowing. Thank you for the great introduction to cwe!

  • PercsPercs says:

    Never thought I’d find such a good place to read more about cold water extraction. I’ve been doing it with Oxy for years and still managed to learn new things from you, much appreciated!

  • Anna D says:

    Such good content! So far I’ve been reading about CWE in forums here and there but never from a solid respectable source, until now! You guys rock

  • Droppp says:

    Great read, your dedication shows on the whole page and website too. Grateful for this!

  • Kello says:

    Just want to say thanks for providing solid info about this! It’s hard to find

  • Ben Grey says:

    I am sick as hell right now and I was having terrible pain laying down in bed, but this great article made me check if I could apply CWE on my medication and yup, I actually tried it (with your method) with a higher dose and it made me feel much better. Really the highlight of my day, thanks CWEx team!

  • Mr Goodson says:

    Very nice touch on adding the legality of it and why CWE works (solubility), appreciate it!

  • Miss Betsy says:

    Came here from the Q&A just to say you guys are WONDERFUL. Kisses!

  • Alex Moura says:

    Yup, want to confirm the legality, I’ve asked my chemistry teacher about it and he said it was absurd for people to think it was illegal it the first place. Top notch quality

  • The Prince says:

    Congratulations on being the main source for wikipedia’s cwe article, just came from there. It’s an incredible feat, good job!

  • Sonia Ashcraft says:

    I love that you guys are not only writing the most useful articles about cold water extraction I’ve ever seen but also that you actually give a damn about the users (I gather that you guys are too from the impeccable way you write and the dedication). Just spot on work!

  • TheCutes says:

    Keep up the good work and Thank you for another FANTASTIC article

    • Heather says:

      I agree, impeccable work on their part. t feels good to finally have somewhere I can point people to when they ask about CWE.

  • Rachel Jay says:

    Here from the infographic, this page is even better – excellent! I’ll be sure to keep reading, love your website.

  • Julio says:


  • Guy Widdit says:

    Ayy keep this up please, big respect from me and my boys. We do this CWE all the time now, saved our backs!

  • Jane Richmond says:

    Stunning work on the whole website and especially on the quality of the articles. Excellent effort CWEx!

  • Bert Leo says:

    TBH many of the things about CWE in the internet are very low quality, but when I found this intro article about CWE and then read more of your articles – wow. Never expected someone to step up for the CWE community as well as you have CWEx, incredible! THANK YOU!

  • I Am Laura! says:

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  • Bobcat says:

    Came here from a forum, many people recommended your website so I had to check it out. I am impressed! I wished so many times for a solid place to read about CWE to be created and boom, here it is. Thank you guys and great job

  • Patty4Ever says:

    Very good write up and visuals! You make learning about CWE fun lol. Thanks for the content & appealing design.

  • Alyona says:

    Very very nice my friends. Thank you so much for the good information! Big hug from Russia!

  • MagicSteve says:

    Damn… this is just phenomenal work, on behalf of the cwe community.. Thanks for all your hard work guys

  • Marley says:

    Oh my goodness! Incredible article dudes! Finally I can do CWE with peace of mind.


  • Shadilay Adams says:

    Out of this world quality guys, unseen in the CWE community until you appeared! Keep this up and bless you!

  • Earl says:

    Hello guys, just want to say thanks for the fantastic information and even better design and presentation. Incredible work!

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