iso wash cannabis what you need

How to make a QWISO extract?

If you have finished growing, drying and curing, it is time to consume it. There are many ways to consume marijuana, one of them being vaporizing.

First of all, what is a QWISO (Quick-Wash ISOpropyl) extract? Cannabis buds consist of two main parts – plant material and, what I like to call, “effective material”, which gives all the desired effects from consuming it. In other words, plant material is more or less useless. An extract (also called concentrate, shatter, wax, oil, budder) basically contains only the desired “effective material”, and is intended for many uses, but mainly for vaporizing.

Making extracts isn’t as difficult as you may think, just requires some patience. There are several different methods for making high-quality extracts (other popular being BHO, but it is way more dangerous and complex due to usage of highly flammable butane, so I will stick to QWISO method).

  • Buds, at very least 5 grams of it, though the more the better (10-20 grams is optimal).
  • A grinder.
  • Coffee filters (unbleached).
  • Isopropyl alcohol, the purer, the better, 99% recommended. Isopropyl alcohol is also called rubbing alcohol. You can get it from hardware or electronics stores. You will need around 100 – 200 ml of it per 10 grams of buds.
  • A sieve (for filtering chunky plant material). Or 2 sieves – one smaller and one as large as possible, if you’re making over 10 grams.
  • A plate or other flat ceramic or glass surface (note: it must be quite deep, since you will be pouring quite a lot of liquid there).
  • 1 small jar (up to 0.5 litre) and 1 larger jar (0.5-1 litre should be enough).
  • A small razor blade for gathering the extract.
  • (optional, but highly recommended) a simple air-blowing fan.

First of all, make sure all containers (both jars and a plate) are really clean and totally dry (you want them totally clean, since the unwanted material might get into the extract, causing you problems later trying to remove it, and you want them dry, since water evaporation takes way longer than alcohol).

Firstly grind up all your buds into the small jar (ground buds have larger surface area, so it is easier to extract all the goods from them that way). Then put that jar and your alcohol into a freezer for a few hours or just overnight to make sure they’re as cold as possible (don’t worry, isopropyl freezes only at -89 C). Freezing is necessary, since trichromes fall off the leaves of the bud way more easily at low temperatures, making the extraction significantly more successful. Extracting without freezing results in smaller amounts of the final product.

You may also want to prepare your larger jar to save time later: take 1 coffee filter and put it onto your jar making sort of a bag (note: I used some thread to make sure the filter doesn’t fall into the jar), or, if you are making lots of extraction, cover entire surface of your larger sieve with filters and place smaller sieve on top of it.


Pour alcohol into the small jar till all the ground buds are submerged in it. Close the lid very tightly and shake it as hell for exactly 30 seconds (more might result in more chlorophyll extracted, making the final product taste not as good, less might result in smaller amounts of the extract).

Then pour everything through a sieve and through a filter into a jar (you may press the ground material in the first sieve to make it sieve though a bit faster). Yes, this part will be very slow, you will need patience, filtering might take 20-60 minutes. Pour a little extra alcohol into the small jar to make sure there are no left-over trichromes remaining in it and pour that though the filters as well.

How does this work? Cannabinoids dissolve in alcohol (for example, it doesn’t dissolve in water, so we can’t use that) leaving behind “powerless” plant material of buds. Sieve filters the chunky plant material and filter further refines the liquid by removing the tiniest bits of remaining plant (you have to use sieve for chunky parts, since using only a filter will cause it to clog very fast and filtering process might take hours). Since all cannabinoids are dissolved, they are in a liquid state at this point. Coffee filter allows all liquids to pass through it but stopping any solid particles.

Once filtering is over, you will be left with a jar containing a clear liquid with a green tint. You might ask, where the hell is my concentrate then? It is dissolved into that alcohol, we need to remove the alcohol now.

Pour jar’s contents into the plate or any other flat-surfaced container you have chosen. Pour a little extra alcohol into the jar to again make sure you don’t leave any trichromes in it. If you have a fan, then set it to blow into the liquid at lowest setting. Important notice: make sure you leave the evaporating alcohol in a garage/basement/a ventilated area, since you will be evaporating all the alcohol you used, which is flammable and slightly toxic. The evaporation might take between 12 and 24 hours.

Once the evaporation is complete (there are not even the slightest traces of any liquid on the plate), grab your razor blade and a chosen container for storing the concentrate and gather up from the surface. I used a toothpick to remove gathered material from blade into a container.

That’s all. Just clean up and you’re all done. You should be left with some really nice gooey and sticky extract.

If you have finished growing, drying and curing, it is time to consume it. There are many ways to consume marijuana, one of them being vaporizing.

What is QWISO and How Do You Make it?

Over the years, cannabis users have come up with a number of clever ways to consume the active compounds in the herb.

Extracts, as opposed to straight up buds or flowers, are a highly potent form of marijuana, and widely consumed for not only their powerful euphoric highs but also medicinal benefits.

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With so many tried and true methods for extracting key cannabinoids like CBD and THC out of cannabis plants, it’s fair to say that the marijuana extract world is practically a rabbit hole.

QWISO is one such method, which can give great yields, even from relatively small amounts of cannabis flowers. In case you’re wondering, the abbreviation stands for ‘quick-wash in isopropyl’, even though among everyday consumers, it’s often called ISO oil or quick-wash hash oil.

What is QWISO?

Isopropyl hash oil is a kind of cannabis concentrate. It is made via an easy process in which trichomes from mature flowers are extracted with the aid of isopropyl alcohol – which is among the least-selective solvents currently known and given its makeup, it is easily water-soluble and has high polarity. It also allows for a very potent way to experience the euphoric effects of cannabis without actually requiring a lot of plant material to begin with.

A key thing to remember early on is that ethyl (consumable) alcohol or rubbing alcohol is never a substitute for isopropyl – because the end product can be dangerous to consume and also quite harmful to your health.

In the cannabis community, there are many ways to make a QWISO concentrate. For example, you can try the ‘soaking’ approach which could take anywhere between a few minutes to a few hours – depending on the kind of concentrate you seek. But that’s not the only deciding factor – it could also depend on what the cannabis quality is like at the start of the process.

In any case, we’d always recommend a flower that’s been dried and cured properly because we want to do our best to minimise the amount of chlorophyll and moisture that will inevitably be pulled from the plant material.

How to Make QWISO Extract

Before we start putting together the tools for this quick and easy process for making ISO oil through the ‘soaking’ method, we’ll need to grind up and freeze our cannabis and alcohol in advance – by at least a few hours or preferably overnight. When we freeze flowers, the trichomes are a lot easier to extract from the plant itself.

The flower material you’re going to use could either be nugs (buds) or trimmings – doesn’t really matter. In case of the latter though, you won’t need to freeze them.

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Now, to make your quick-wash hash, you will need:

  • Five-ten grams of bud or trimmings (although you can start with 3.5 as well)
  • Coffee grinder
  • One glass coffee pot
  • A few coffee filters
  • Mason jar
  • Splash guard
  • Clean glass dish or bowl
  • Plastic storage container
  • Razor
  • Ninety-five percent alcohol (the higher grain, the better)
  • Oven

And here’s how we make QWISO extract in 5 straightforward steps:

1. Once your plant material is frozen, place it in the Mason jar, pour alcohol over it – make sure the bud is completely bathed in it.

2. Close the lid properly and give the jar a good shake for 30 seconds, minimum. This 30-second shake is what actually defines QWISO as a ‘quick wash’ extract – because this time is sufficient to extract all those trichomes, while leaving behind that harsh-tasting chlorophyll.

The longer you ‘agitate’ the mixture, the more cannabinoids you can extract. However, don’t be surprised to find, despite your best efforts, a few traces of chlorophyll, waxes and plant alkaloids left behind.

3. Now drain the solvent in a glass bowl because we’ll need to flush the solid plant matter in the plastic storage container. Time to bring those coffee filters into the picture as they will be needed to strain the mixture at least a few times.

This ensures that all the solid plant matter has been properly removed, before you can place the clear, green-looking liquid under the sun, that’s been left behind. This should be done for at least 24-48 hours so that the alcohol can evaporate. Even though isopropyl alcohol is extremely inflammable, it can evaporate on its own and you will typically not need any further intervention.

However, if you feel that leaving it out in the sun is not convenient or too time consuming, you can place a fan next to your extract and have it blow cool air over it at the lowest speed. It’s always best to conduct this process within a well-ventilated area if you’re not going to leave it out in the sun – because the fumes can not only be toxic but slightly inflammable as well. An hour or so should do the trick.

4. Finally, you’re going to cook your extract in the oven until it reaches boiling point – that’s just under 83°C – and you’ll be left with a nice and potent oil that’s rich in THC. Wait for it to reach room temperature.

However, if you don’t want your QWISO to be too potent, you can bypass the oven and just let the alcohol evaporate until no traces of liquid are left behind.

5. Once your extract has reached room temperature and there are no traces of alcohol, use the razor to scrape it off the glass dish or bowl. Place it in a storage container.

Your ISO oil is ready for consumption!

It’s important to consider the fact that the time your bud must be soaked in alcohol varies between a few minutes to a few hours – as this depends on what kind of flower you’re starting out with as well as the kind of cannabis product you’re using.

Ways of Using QWISO

Quick-wash hash can be consumed much like other conventional forms of cannabis extracts. Additionally, the strain you choose will, to a certain degree, determine the overall taste and strength of the extract.

Your ‘go-to’ method of consuming quick-wash hash oil will pretty much depend on what kind of experience you’re looking to have. For example, having your hash oil in a vaporiser is easy and portable. One the other hand, if it is used in a topical, it has significantly less psychoactive effects but can remedy certain skin conditions and even inflammation.

Edibles are a healthier way of consuming hash oil as opposed to smoking – the latter is the best way to experience THC’s psychoactive effects. Having it in a tincture, on the other hand, is a very handy and convenient way of having it.


Using your hash oil in a tincture is a conservative way to enjoy your hash oil. All you need is a gram of your ISO oil, 3 ounces of at least 80% proof alcohol, 4 one-ounce bottles (eye droppers) and a glass jar.

Combine 3 ounces of consumable alcohol with an ounce of hash oil – place the lid tightly over it and store it in your freezer for up to 6 days, shaking it at least a few times each day.

After 6 days, store the tincture in your eye drop bottles. Squirt 1-2 drops under the tongue but hold it for about 30 seconds before swallowing it. Effects may come on after an hour or so, so don’t re-dose before 1-2 hours.


Prepare some hash oil butter beforehand and add the ISO oil to your edible as you’re cooking it.

You’re going to need one-third cup of cannabutter or coconut butter, 16 ounces of water and a gram of QWISO.

Combine the ingredients and let them cook on low heat for 30 minutes. Just don’t let the mixture bubble. Let it cool off for a few minutes and then let it sit in your freezer overnight. The next day you will notice that the hash butter has risen to the top. Remove it from the water and use a small amount of hash butter on a slice of toast to initially determine what does is right for you.

You can use the hash butter with your favourite edible recipes.


A common way to consume your QWISO is through a vaping pen which is specifically designed to be used with hash oil. Check with the manufacturer to ensure whether you will be getting smoke or vape when consuming hash oil.


Quick-wash hash oil can also be mixed in a topical solution to remedy skin conditions and arthritic pain. Hash oil that has activated THC can be absorbed into the skin easily so it’s important to know how much of the THC compound is in your oil.

Smoking ISO Oil

Depending on your personal preferences, you can consume QWISO in a spliff, joint or oil rig. Smoking ISO oil in an oil rig is the same as smoking other wax dabs with the aid of a rig.

If you prefer to smoke it in a joint or spliff, add a little hash oil on top of your cannabis while rolling it up.

Whether you smoke, vape or consume your ISO hash oil in an edible, this gooey and sticky extract can really take your cannabis high to the next level.



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Over the years, cannabis users have come up with a number of clever ways to consume the active compounds in the herb.   Extracts, as opposed to straight up buds or flowers, are a highly potent form of marijuana, and widely consumed for not only their powerful euphoric highs but also me …