Jul 11, Ethanol extraction is a single-stream process that can be conducted under warm or cold conditions. An example of a warm ethanol extraction. Aug 31, This article is sponsored by Capna Labs. Capna Labs is an industry-leading extraction laboratory and research facility based in Southern. May 3, Several common forms of cannabis extraction rely on a solvent, such as alcohol. In brief, the cannabis soaks in alcohol, usually ethanol, the.
The alcohol is combined with dried cannabis plant material. Alcohol works as a solvent and pulls the tetrahydrocannabinol THC , terpenes, and cannabinoids from the plant material.
After the process, the alcohol solvent, byproducts, THC, trichomes, and cannabinoids are further separated and manipulated to create a pure, finished cannabis oil product or concentrate. During alcohol extraction of the cannabis plant, the dried plant material is first covered in alcohol. During the second step of alcohol extraction, the alcohol is further separated or strained away from the plant material using filters. During the third and final step of the alcohol extraction process, the alcohol is evaporated, leaving behind the cannabis concentrate that is high in THC, trichomes, and cannabinoids.
Despite the need for some financial investment in a CO 2 extraction system, a manufacturer can consider various levels of equipment. For instance, Apeks Supercritical makes introductory through high-production extraction systems and even offers refurbished systems. This gives customers a range of prices to consider. Using butane as the extraction solvent creates what is known as butane hash oil.
To do this, the process starts with cannabis and liquid butane in a pressurized and heated system. By using evaporation under a vacuum, it is then possible to remove the butane solvent. The vacuum turns the butane from liquid to a vapor, making it easier to remove.
This kind of extract is also known as shatter, which is a clear material that typically includes THC, CBD and other chemical components, including terpenes. To really make shatter, which is a hard version of butane hash oil, terpene content must be kept low or it works like a solvent that makes the extract soft.
The right starting sample can help to reduce the terpenes present in the final product, such as by starting with cured flowers. On the other hand, the butane hash oil can be heated to remove terpenes after extraction as they are more volatile than cannabinoids like THC and CBD. Cannabis alcohol extraction Several common forms of cannabis extraction rely on a solvent, such as alcohol. In brief, the cannabis soaks in alcohol, usually ethanol, the plant material is then removed, the liquid filtered, and the alcohol is removed with some form of evaporation.
One of the biggest challenges is the inherent polarity of solvents like ethanol—meaning it has a propensity to mix with water and dissolve water-soluble molecules like chlorophyll. Removing the chlorophyll from the extract is important as it produces an undesirable, bitter flavor.
A cannabis tincture created using alcohol-based extraction. Firstly, allow me to explain that distillate is the product of a totally separate fractional distillation process, you can read a bit more about it and other concentrates in our post about Solvent extracts. Using ethanol as a solvent will usually result in a shatter-type end product.
Find people that distil their own alcohol. Moonshine but not diluted down. A stil is not that hard to make. You just need to keep an eye on temperature to make sure you get Ethyl not Methyl..
As it vapes off it should not matter even if you do get methyl as there is only a minute fraction left. Wine and Beer contain fractions of methyl alcohol. I do not have much equipment but when the time comes I am going to process it all like this to make storage easier. I use medical cannabis legally.
Hi Brett, thanks for your comment. Before anyone tries this for themselves, however, be sure to familiarise yourselves with the necessary safety measures, as well as the relevant laws and regulations for home distillery where you live. Thanks again, your help is appreciated! I follow this type of extract but have some issues regarding precipitation of material once I evaporate the ethanol. At this stage the material is amber liquid.
Should I use more coconut oil? In general 2 Oz of material can yield around ml of cannabis oil before dilution. Once I dilute with coconut oil, could I filter through 25 micron screen to remove precipitation, like resin? Hi Rick, thanks for your question. Fresh, recently harvested and un-cured weed will give a lighter-coloured oil while older, cured material will have oxidised somewhat and produce a darker colour oil.
The amount of heat used in the process can also affect the colour of the oil, more heat makes for a darker oil. But in my opinion, the main factor in oil colour is the age and quality of the starting material. I make the same tincture but I take the bud and soak it in grain alcohol for a couple weeks before boiling off the alcohol. It definitely gets a lot of chlorophyll in there, but I figured it also might get more of the good stuff out.
Do you know for sure how effective the extraction is after a short soak as you described? Making an extraction with a long soak as you describe is going to give you something like RSO Rick Simpson Oil a dark, tar-like substance which is great for ingesting as whole plant medicine and contains a wide range of compounds including chlorophyl from the plant.
On the other hand, a quick wash alcohol extraction aims to extract just the cannabinoids and terpenes, and if performed correctly can result in a clear, glass-like shatter substance of high purity, which can be smoked or vaporised. Compounds such as chlorophyl are unpleasant tasting when smoked, so the aim is to extract as few unwanted compounds as possible from the plant material, hence a quick rinse at very low temperatures.
Coffee cup warmer at that point i can see sepertaion i then run it thru a pump funel 90 micron filter when i say this talking cup kief to cup maybe 2 alchohol rence everything with just reg alcohol. After this depending how much making i then will jar and put in freezer over nite 24 hrs min the longe the better. Again i then run it thru a vacuum 90 microns filter again then i have a certian type coper pot and a induction cook and you need fan and ventilation these are musts i will run it at about f.
Stir constint and be able to drop temps quick also avoid breathing fumes deffently dont smoke no sparks now you watch steam no boil not till finish alcohol steam this can take a bit depending how much on average 15 gms. Strong oil to every cup keif this is not cheap or easy but very strong you cant buy and yes you are definitely saving money.
At this point you can put a lid on it let set anothet 10 hrs if your using mason jar you can put in frige this now is up to you you will have a product that is very very good. If want can dissolve again in alchohol and repet intire process and you will make it cleaner and a bit stronger thats personal choice i like both i have my reasons not that i think it makes a big differnce.
Hi Mikey, thanks for your question. I did follow a short soak and used the tincture in a gummy recipe.
Hi Nikky, thanks for your question. To calculate the dosage is definitely a challenge without knowing the cannabinoid content of the flowers or extract. The difference between a wax and a shatter product is mostly due to molecular structure. If the extraction is left to crystallize without much disturbance the molecules will naturally arrange in a more uniform geometric which appears translucent because it allows a certain amount of light to pass freely between the molecules.
A wax type product can be achieved from the same extraction process with the difference being agitation and stirring, or whipping the extract during first stage purging in the baine marie and also between purging cycles in the vacuum chamber and immediately following the completion of the final vacuum purge before the extract has cooled and can still be easily worked.
Hi John, thanks for your fascinating comment, some great info there. Can I just leave the solution out to evaporate into the air? What are your thoughts on using your described method and then resolving the resulting concentrate in vegetable glycerin?
I certainly do not claim to know any more than anyone else here but in my experience its near impossible to predict the effect that terpenes, waxes, and lipids will have in regards to the texture of the extract.
I have typically seen shatter type products winterized to reduce the inclusion of these compounds, which would explain the lack of a full flavor profile. Prediction being difficult because of the infinite possible combinations of these compounds and the varying concentration levels between not only different strains but also between different plants of the same strain.
Cloning is a reliable way to achieve duplicable results in the composition of your starting material provided the clones were grown, harvested, trimmed, and cured with identical conditions. As with any and all natural products, results will vary. Hi Zac, thanks for your praise, and for the question. If using kief then you can theoretically soak it in alcohol for longer and at a higher temperature for example at room temperature, rather than in the freezer to more efficiently extract the maximum cannabinoid content without any worrying about chlorophyll contamination presuming the kief is relatively clean and free from leaf matter.
Therefore allowing a longer, warmer alcohol soak increasing potency.
The Best Cannabis Extraction Methods for Marijuana Concentrates
During the third and final step of the alcohol extraction process, the alcohol is evaporated, leaving behind the cannabis concentrate that is high in THC. Sep 9, In this post we present you two extraction methods for those who want to use alcohol as solvent (which will be later purged). We'll see how to. Jun 21, Ethanol extraction proponents would argue that most of the water soluble plant component extraction can be circumvented by keeping very.