Marijuana Extracts

Make A Small Amount Of Hash Oil
With Marijuana And Alcohol

Dry marijuana is ground up into smaller sized particles and placed in a container where it is mixed with alcohol. The alcohol dissolves the desirable components, such as THC and CBD, from the plant material. It is then filtered.

The filter keeps any plant material or other particles out of the resulting hash oil. The same marijuana is then mixed with a second batch of clean alcohol to remove any of the remaining compounds, and poured into a second filter.

The liquid material that passes through the two filters is then heated to evaporate the alcohol. After the alcohol has all evaporated, only the hash oil remains. It can then be collected and either consumed right away, or stored for later.

Instructions are for making small amounts of hash oil out of batches of 7 grams of marijuana. 7 grams of good bud will yield at least 1 gram, usually 1.25 to 1.50 grams, of hash oil (also called cannabis oil). The more potent the bud, the larger the yield.

If you grow marijuana you can turn bud trim, leftover after manicuring a crop, into hash oil. 7 grams of good bud trim can yield about 0.5 to 1.0 gram of hash oil, depending on the quality of the bud trim.

You can increase the amount, but this method will take too long for quantities of marijuana larger than an ounce or so. If you have an ounce or more of marijuana to be made into hash oil, look at these instructions.

Planning And Set Up
First Flush
Second Flush
Evaporating The Alcohol
Step By Step
List Of Materials

Planning And Set Up

A list of what is needed, the dimensions of the items, and an explanation of how they are employed to produce hash oil is located in the materials section of this guide.

Set up your work area and have all of your materials together. Choose a well lit area and a solid work surface that can easily be cleaned up. Make sure there is nothing near you that can ignite the alcohol fumes.

1 Quart Glass Canning Jar1) For the filtration system, you will need 2 filters made the same way.

On the bottom place a 1 quart glass canning jar, or other type of container that will serve the purpose of capturing and retaining the alcohol when it is filtered.

Choose the containers so they have the capacity to hold enough liquid as well as support the funnel, strainers, coffee filter, that will be put on them.

Canning Funnel On Glass Canning Jar2) Put a funnel on the canning jar, or whatever container you use. The funnel should fit snugly on the canning jar and be well balanced.

With an unbalanced funnel, the weight of the liquid being poured through might overturn it. This would defeat the purpose of filtering the alcohol and marijuana mixture..

Strainer On Top Of Canning Funnel 3) When the funnel is in place and balanced, put a strainer over it. This strainer will support a coffee filter and another strainer.

The funnel that this strainer is placed on top of, is to direct the liquid the passes through the filtration system into the container below it. The contents held in the container are what will become hash oil.

Coffee Filter Placed On Strainer4) When the strainer is in place and balanced, put a coffee filter over it. This will keep any small solid particles of plant matter or other material out of the resulting hash oil.

The size of the canning jar, funnel, and strainers were chosen because they fit together snugly, as well as staying balanced.

Filter System5) Put another strainer over the coffee filter. Push the top strainer down, firmly but gently, so it fits snugly into the bottom strainer with the coffee filter in between the top and bottom strainer.

That is one filter, and you will need two of them. The top strainer will filter out larger particles of plant material and foreign matter.

The coffee filter will remove smaller particles. The bottom strainer is to support the coffee filter and top strainer. The resulting hash oil will be very clean, and free of contaminants.

The material trapped by the coffee filter is mainly trichomes. When smoked or consumed in another manner, it is very potent and nearly as strong as the hash oil.

The reason for needing 2 filters, put together as described above, is the marijuana will be mixed with alcohol and filtered. This is the first flush.

Then it will be mixed with alcohol again and filtered, to remove any remaining ingredients from the marijuana. One filter will be for the first flush and the other will be for the second flush.

Buds In Coffee Grinder

It is suggested that you start with a quarter ounce of marijuana, 7 grams or less for your first attempt.

Once you are familiar with the capacity of the items you use, you can increase the quantity you process at one time.

If you try to process too much material at one time, the amount of alcohol could overfill the filters.

For the best results, grind the marijuana with an herb grinder, coffee grinder, or something similar until it is about the same size as marijuana that would be rolled into a joint, or a bit larger.

Buds After Being Ground In A Coffee Grinder

Don't grind the marijuana into fine particles or powder though, that is too small.

With a coffee grinder on the coarse setting, it took under 3 seconds to grind these buds to this consistency.

After the marijuana has been ground up, put it in a freezer. You can put it directly into the container it will be mixed with alcohol in (but don't add any alcohol) and freeze it.

Also put alcohol you will be using in the freezer at the same time. Keep them there for at least 8 hours prior to making hash oil. This will limit the water soluble impurities the alcohol extracts from the mj.

Additionally, make sure the marijuana is as dry as is possible before working with it. Dry marijuana is much easier to grind and extract the potent ingredients from.


7 grams of ground marijuana buds will be put in a measuring cup or other container, mixed with enough alcohol to totally submerge it, then stirred. The alcohol will dissolve THC, CBD, and other alcohol soluble cannabinoids.

The mixture of alcohol and cannabinoids will then be poured through the filtration system to remove plant material and other impurities. This is called the first flush.

To remove any remaining cannabinoids, the same marijuana from the first flush will be mixed with another batch of clean alcohol and poured into the second filter. This is called the second flush. After being flushed twice, the marijuana can be discarded.

This can be repeated, removing the coffee filters and replacing them with new ones, in 7 gram batches until all the marijuana you want to convert to hash oil has been processed.

After that, the filtered alcohol/cannabinoid mixture that remains will be heated to evaporate the alcohol until all that is left is clean potent hash oil.

Before you start, make sure to grind the marijuana and be sure both filters are setup properly, being balanced and stable so they will stay in place and filter the alcohol when it is poured into them.

First Flush:

Ground MJ In Container1) Put marijuana into a container.

In this case 7 grams of ground bud was placed in an eight ounce glass measuring cup, that was chosen as the container to mix the alcohol and marijuana in.

7 grams of ground bud doesn't occupy much space. You could mix the alcohol and marijuana in a smaller container (like a glass) that you might have available.

Pour Enough Alcohol To Cover The Ground Buds2) Add enough alcohol to cover the marijuana.

It took 2.5 oz/74 ml of alcohol to saturate 7 grams of ground marijuana buds. The marijuana must be completely submerged by the alcohol in order to extract all the active ingredients.

However, it is best not to add more alcohol than is required to submerge the plant material. More alcohol is not necessary and will increase the time it takes for the alcohol to evaporate.

3) Stir Alcohol And Marijuana For 2-3 MinutesStir for 2-3 minutes.

You can use a spoon or something similar to do the stirring. A glass stirring rod was employed for this example.

Limit the time the marijuana is in the alcohol to 2-3 minutes per flush.

If the mj is left in the alcohol for too long, less desirable water soluble chemicals are extracted in larger quantities.

4) Pour Into First FilterPour into first filter.

Limit the amount of plant material that gets into the filter by placing a strainer over the top of the mixing container when you are pouring it in.

Instead of a strainer, you can use something else that will serve the purpose. The marijuana will be flushed with alcohol for a second time, so you want it all to remain in the mixing container.

5) Let The Alcohol/Marijuana Mixture Flow Through The Filter Wait for it to filter through.

It took about 15 minutes for the 2.5 oz/74 ml of alcohol, needed to submerge 7 grams of bud for the first flush, to flow through the coffee filter shown here.

This is the end of the first flush. While it is being filtered, the marijuana that was just mixed with alcohol and filtered should be flushed a second time by repeating the process with clean alcohol immediately.

Second Flush:

1b) Keep marijuana in the same container.
2b) Add enough alcohol to cover the marijuana.
3b) Stir for 2-3 minutes.
4b) Pour into the second filter.

This time pour the contents into the second filter. When pouring the mixture into the second filter, pour all the plant material as well as the alcohol in.

Lift Strainer So Alcohol In The Wet Plant Material Will Drip Into Filter When the liquid is flowing through the second filter, you can speed the filtering time by raising the strainer with the plant material over the liquid in the filter. This will allow you to extract remaining liquid out of the wet marijuana.

It took about 15 minutes for the alcohol, needed to submerge 7 grams of bud for the second flush, to flow through the second filter.

After all the liquid has passed through the filters, the marijuana can be discarded. If you are going to make more hash oil, remove the coffee filters from both filtration systems and replace with new filters.

You can keep repeating this process for each 28 gram batch of marijuana you want to make into hash oil. Use the same containers and filtration system each time, making sure to change the coffee filters for each new batch.

When making more than a single 28 gram batch, keep the alcohol and marijuana for later batches in the freezer where they will stay cold, until they are ready to use.

If you leave them out, the alcohol and marijuana will get warm. The warmer they get, the more the water soluble materials get extracted into the hash oil.

Let the used coffee filters dry, making sure not to loose any of the contents. When the used coffee filters dry, you can collect the material that has accumulated on them.

Collecting Material On The Coffee Filter With A Glass ScraperIf you ground the marijuana into fairly large particles, rather than fine powder, the material in the coffee filters is mostly trichomes.

They are very potent and can be smoked, or if you have enough made into kiff butter.

Put one of the dry coffee filters on a hard surface, like a table, and lightly pass over the filter with something like a glass scraper.

Evaporating The Alcohol

When all the liquid has passed through the filters, and you are finished with all the marijuana you want to process, it is time to evaporate the alcohol. You can mix the contents of the two containers or you can evaporate them separately.

The liquid in the first flush container is the better of the two. By keeping them separate you will have 2 grades of hash oil.

To evaporate the alcohol you will need a heat source and something to put the alcohol in while it is on the heat source.

A cooking pot, pyrex dish, or some other type of vessel that can be heated is good for this purpose. Some people employ a rice cooker, while others choose a double boiler so the alcohol is not heated directly.

The boiling point of isopropyl alcohol is 180.7°F/82.6°C and the boiling point of ethyl alcohol is 173.1°F/78.4°C. So a heat source that can provide a higher temperature than the boiling point of the solvent you have is needed.

For a heat source working outdoors, an electric griddle will serve the purpose well. Do not use a heat source that has an open flame.

A rice cooker will also work well. It provides the heat source and the alcohol can be poured directly in, without the need for a separate vessel to hold the alcohol.

To evaporate the alcohol, turn on your heat source and if you can control the heat set it to a temperature higher than the boiling point of your solvent, while keeping the temperature below about 230°F/110°C.

Some more expensive rice cookers allow you to set the temperature. Inexpensive models will have a set temperature somewhere a bit higher than the boiling point of water, 212°F/100°C

Filtered Liquid Warming On Electric GriddlePut the liquid mixture on the heat source. When the alcohol reaches its boiling point, you will see bubbles start to form. After it starts boiling, the alcohol will begin to evaporate.

Keep heating the alcohol until it stops boiling. As soon as it stops bubbling all the alcohol has evaporated. Remove the hash oil from the heat.Filtered Liquid Boiling And Evaporating On Electric Griddle

It took about 11 minutes for the 9 fluid ounces/266 ml of isopropyl alcohol needed to flush 14 grams of bud (2 batches of 7 grams) to evaporate.

At this point the hash oil is like warm tar. It should be collected while it is still warm and easy to work with. It can be consumed right away, or stored for later use.

Do not wait to remove the hash oil from the heat. If you do and it gets too dry, the hash oil might solidify and be hard to collect.

When this happens, you can add a bit more alcohol and dissolve the hash oil into it. When it is fully dissolved, heat it again to evaporate the alcohol. This time don't heat for so long.

Collecting Hash Oil

The oil shown here was collected with two chisels. One was 1/4 inch (0.635 cm) and the other was 1/2 inch (1.27 cm).

First the 1/2 inch (1.27 cm) chisel was gently moved across the bottom of the container, where the oil accumulated on the tip of the chisel. Then when needed, the smaller chisel was employed.

Depending on the material the container is made out of, a metal chisel might scratch it. So something made out of glass, silicone, or another softer material that won't scratch the bottom of the container would be a better idea.

Warm Hash Oil

To keep the oil warm and easy to work with, the container it is in can be put in a pot with warm water. The heat from the water will enable you to more easily amass the oil.

When a worthwhile amount was gathered on the tip of the chisel, it was put in a silicone container for storage. This was repeated until almost all of the oil was collected.

Hash Oil Put In Silicone Storage Container The storage container shown is made of silicone and holds about 5 grams of hash oil. After being filled, the top was put on. Then it was put in a fridge for long term storage.

If the hash oil is well sealed and stored in a cool dark area, like a fridge, it will retain most of its potency for 6-12 months. After that the potency will gradually decrease. But it can still be ok for about 2 years, or a bit longer.

Hash Oil On Rolling Paper After collecting all the oil it was possible to get, there was still a bit of oil left in the bottom of the container it was evaporated in.

To get the remaining oil out a small amount of alcohol was added to the container, and the hash oil was dissolved in it. When it had all dissolved and was mixed in the alcohol, it was poured into a storage container.

With the top of the storage container left off, the alcohol was allowed to evaporate into the air over the course of several days, and just hash oil remained.

Some people collect the hash oil in a plastic syringe while it is still a warm liquid. Alternately, the evaporation process can be stopped just before the alcohol has totally evaporated.

The oil will still be in liquid form when it is easy to pour into the container it will be stored in. Leave the top off of the container until the alcohol evaporates. If there is too large a quantity of alcohol remaining in the oil it can take a few weeks to evaporate without heating.

Step By Step

A) Grind marijuana.
B) Put marijuana and alcohol in the freezer.
C) Freeze marijuana and alcohol for 8 hours +.
D) Put filtration system together.
E) Pour alcohol in container with marijuana.
F) Stir 2-3 minutes.
G) Ensure filters are balanced and stable.
H) Pour into first filter.
I) Let the alcohol filter through.
Ia) This is the first flush.
J) Repeat procedure for second flush.
K) Pour plant material and alcohol into 2nd filter.
L) Let the alcohol filter through.
La) This is the second flush.
M) If necessary repeat process with another 7 grams.
N) Do this until all the marijuana is processed.
Nb) When done, the alcohol needs to be evaporated.
O) Put alcohol in rice cooker, double boiler, etcetera.
P) Turn on your heat source.
Q) If you can, set temperature for your solvent.
R) Put the liquid on the heat source.
Q) Alcohol will boil and evaporate.
R) When bubbles stop, the alcohol has evaporated.
S) Remove from heat and collect hash oil.
T) If necessary, store hash oil in appropriate container.
U) Collect material on coffee filters.

List Of Materials
heat source
coffee filters
storage container
well lit work area
spoon or stirring rod
kitchen sink strainers
99% isopropyl alcohol
glass scraper with clean blade

Be very careful, alcohol can extract harmful chemicals from some types of plastic, and similar materials like rubber.

When working with alcohol, make sure that it only comes into contact with ceramic, glass, porcelain, stainless steel, paper, etcetera.

Some people recommend not letting metals like aluminum, copper, iron come into contact with solvent because they can leach metals into the hash oil. However, stainless steel is safe.

The materials utilized to make this batch of oil are listed below. You might have most of them at home. If not, there are links to purchase the items in most of the descriptions.

*** funnels *** Funnels are placed on the containers that the marijuana/alcohol mixture will be poured in to filter it. The funnel is to hold the filter and so that all of the liquid will end up in the containers, rather than being spilled and wasted.

When working on this information, a canning funnel, with a 4 inch/10 cm mouth and a 2 inch/5 cm stem (opening on the bottom), was placed on top of each 1 quart canning jar.

*** marijuana *** You can work with marijuana buds, bud trim or any other part of the marijuana plant that has a worthwhile cannabinoid content. You will get the largest quantity of hash oil from buds.

Stems and shake from good marijuana might contain enough cannabinoids to make oil. The marijuana you process can contain seeds, but seeds do not contribute anything to oil.

*** containers *** You will need a container for mixing the marijuana and alcohol in. For this batch of hash oil an 8 ounce glass measuring cup was used.

Another 2 containers are needed to put filters on and pour the alcohol/hash oil mixture into. One quart canning jars are very good for this purpose.

You can put the alcohol in a cooking pot, or transfer the alcohol into a another type of container, to evaporate it.

*** heat source *** A heat source will be required to evaporate alcohol. For working outdoors, an electric griddle with temperature control will serve the purpose well.

If you are going to make 2 grades of oil, you might want to heat both at the same time. Make sure whatever you choose for your heat source provides enough room. Do not use a heat source that has an open flame.

A rice cooker will also work well. It provides the heat source and the alcohol can be poured directly in, without the need for a separate vessel to hold the alcohol.

Depending on the amount, you might not be able to fit all the alcohol that has to be evaporated at one time. You can add additional alcohol to replace that which has evaporated. It would be best to do it one by one, removing the hash oil after each.

*** coffee filters *** Coffee filters are needed for the filtration system. The coffee filters for the hash oil on this page were the size made for 8-12 cup coffee makers.

While working on this page with marijuana bud, it took about 15 minutes for the alcohol/marijuana from each flush to finish filtering through the coffee filter in the filtration system.

*** storage container *** If you are not going to consume the hash oil right away, you will need some type of storage container. Hash oil is almost always very sticky, non-stick containers are a very good choice for hash oil storage.

*** well lit work area *** Choose a well lit area and a solid work surface that can easily be wiped up. Make sure there is nothing that can ignite the alcohol fumes near your work area.

*** spoon or stirring rod *** Marijuana and alcohol are added to a container and mixed together in order to extract the active ingredients into the alcohol. You will need a spoon, stirring rod, or something similar to stir and mix them up.

*** kitchen sink strainers *** Kitchen sink strainers were utilized for the filtration system in the images on this page. You will need 4 of them. A 5 pack like these was purchased to produce the hash oil in the directions above.

The ones employed in the directions above measured 4.25 inches/10.8 cm in diameter by 1.5 inches/3.9 cm in height. They have a holding capacity of about 7 grams of marijuana bud that was ground up in a coffee grinder.

You can use other types of strainers that you may have available. Just make sure they are large enough to hold the amount of marijuana you want to process at one time. Also be sure they will fit together and work with the filtration system you put together.

Note that bud trim or shake will occupy more space than buds. Buds are more dense and occupy less space in comparison. Try putting the marijuana in the strainers before you start to see how much you can process at one time.

*** 99% isopropyl alcohol *** 99% isopropyl alcohol is the solvent recommended for medical hash oil. For other purposes, 95% or higher ethyl alcohol like everclear, or 91% or higher isopropyl alcohol is acceptable.

Whatever your purpose, when alcohol is your chosen solvent, look at the label and make sure that the only ingredient, other than alcohol, is water.

It took a bit less than 5 fluid ounces/355 ml of alcohol to process 7 grams of buds. It took 12 fluid ounces/355 ml of alcohol to process 7 grams of marijuana bud trim. Trim is less dense than bud, so it takes more alcohol to saturate.

*** glass scraper with clean blade *** The material trapped by the coffee filters is very potent. When the used coffee filters dry, collect the material lightly passing over the filter with something like a glass scraper.


1 --- With hash oil that will be prepared into food or drink, marijuana should be decarboxylated prior to making hash oil. Even if you use heat as described above to evaporate the alcohol, when oil will be made into food or drink, decarboxylate first.

Decarboxylating is so the hash oil can be absorbed by the human body more easily. If it is not decarboxylated, the effect will be severely reduced. If the oil is going to be smoked or vaporized, there is no need to decarboxylate.

2 --- An important thing to remember when working with alcohol is that it is flamable. You should work outdoors at a safe distance from anything that might produce a spark

A spark can act as an ignition source for the alcohol. It won't explode but it can catch fire. Inhaling the fumes is also unhealthy, and prolonged exposure can lead to poisoning. If possible work outside.

If you are forced to work indoors, provide ventilation like an oscillating fan in the work area. A stove can be the heat source for evaporating the alcohol if it is equipped with an exhaust fan that is vented outdoors. To be safe, do not use a gas stove with an open flame as the heat source.

3 --- This was noted above, but in the interest of safety be very careful, alcohol can extract harmful chemicals from some types of plastic, and similar materials like rubber.

Some people recommend not letting metals like aluminum, copper, iron come into contact with solvent because they can leach metals into the hash oil. However, stainless steel is safe.

When working with alcohol, make sure that it only comes into contact with ceramic, glass, porcelain, silicone, stainless steel, paper, etcetera. Containers with teflon, like t-fal, should be avoided.

4 --- For the best results you should use 99% isopropyl alcohol and put the marijuana and alcohol in a freezer for at least 8 hours prior to making hash oil.

Start the second flush right after you finish pouring the first flush into the filter. The time from when you pour alcohol for the first flush to the time you finish pouring the second flush into the filter, should be less than 7 minutes.

This will minimize the amount of chlorophyll and water soluble material extracted. Hash oil with large amounts of chlorophyll and water soluble material will have a dark green tinge to it.

This isn't a major concern to most individuals, as hash oil with chlorophyll and other water soluble material is just as potent. But it will be an important consideration for consumers that want oil that is pure as possible.

5 --- As a cure for cancer, and for most other medical applications, marijuana with a high concentration of both THC and CBD is preferred. In general marijuana grown outdoors has a higher CBD content than marijuana grown indoors.

Rick Simpson, the person most responsible for introducing the fact that hash oil can be employed to cure cancer, recommends making medical oil utilizing marijuana grown outdoors by someone who has cannabis growing experience.

In comparison, most indoor grown marijuana has higher concentrations of THC but lower levels of CBD. This is fine for most spiritual or recreational consumers of hash oil.

However, if you are growing indoor marijuana to be made into hash oil for medical purposes, especially to cure cancer, choose an indoor marijuana strain that will produce marijuana with a high CBD content, in addition to high levels of THC.

Related Books

Beyond Buds
A very thorough guide on making various kinds of cannabis concentrates. Includes information on selecting and collecting material, how to make hashish, vaporizers, how to make hash oil, tinctures, capsules, edibles, topical use, and more.
Beyond Buds: Marijuana Extracts

The Cannabis Encyclopedia
Easy to read with comprehensive focus on growing and consuming for medical and recreational purposes. This will be of interest to growers, patients, caregivers, consumers, or anyone interested in consuming, growing, or producing cannabis products.

Over 2,000 color images on 596 pages. Loaded with recent information covering all aspects of marijuana. The grow section explains hydroponics and soil growing, growing indoors, outdoors, and in greenhouses.
The Cannabis Encyclopedia