Therefore, it can be used as an extraction solvent at room temperature or under supercooled conditions. Using ethanol at room temperature or. Storage limits are much more lenient with Ethanol allowing the of a single molecule, normally THC-a or CBD cannabinoids, with certain. Finding a safe & efficient method to extract CBD at an industrial scale is key in this business. Here's how ethanol extraction meets those goals.
using cbd ethanol 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. On a side note, if terpenes are desired in the product, could the water be collected and the terpene oil be seperated and added in afterwards? Hi, thanks for your comment and question. This involves immersing the cannabis flowers in distilled water for days, replacing the water every day before draining it and thoroughly drying the flowers to ensure no mould appears. Inevitably a certain amount of terpene content will also be lost to the water, but this will depend a lot on the variety being used, as not all terpenes are water-soluble.
Would it be possible for you to explain the water bath, with a little more detail? Is the strained bud on a tray inside the Pyrex pan I have one just like yours , or put directly into the water? Hi Jehna, thanks for your question. If using a water bath, the un-purged extraction the strained alcohol goes into the Pyrex dish, which then goes into the water bath, which can be a larger pyrex dish, or a washing up bowl, anything big enough to comfortably hold the dish with the extraction.
As suggested in the article, you can place four supports eg upside down teacups in the bottom of the water bath to raise the pyrex dish and get the hot water underneath it for a more effective purging.
Following the above mentioned steps, I heated it too high of heat, and ended up with a very firm, almost solid like black goo. Would this be a RSO? Hi Cherelle, thanks for your question. Use the highest percentage alcohol you can find, with a long soak for RSO type oils for edibles, etc.
Hope that helps, all the best and happy extracting! Your email address will not be published. B - Phone no. This blog is intended exclusively for persons over the age of QWET extraction with ethanol. Mix of ethanol and buds recently removed from the freezer. Impurities collected in the 25 micron mesh. Purging the solution to remove the alcohol. Vacuum purging a QWET extract. We still should purge a little more. September 9, Cannabis Extracts and Concentrates.
First joint for me was 65 and start growing in 68 Your instructions leave much to be desired and presume we are all chemists. Hi Jim, thanks for your questions. Also, what techniques can be used to get different concentrate consistencies such as distillate, shatter, butter and oil Hi Jason, thanks for the questions. Hi Tim, 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.
Hi Ross, thanks for your comment. Instead, Capna pursued its own way forward, pioneering new techniques for ethanol extraction. These factors made it clear that the way forward for us was not to do what everyone else was doing, but to forge our own path by developing new techniques and tools for ethanol extraction.
Capna has been able to scale up its ethanol extraction technology for high-volume hemp businesses, while still keeping the system as simple as possible. While the Atles is about maximum extraction efficiency, tools such as the Ares falling film evaporator and Ceres centrifuge allow extractors to retain and reuse the ethanol used during extractions.
Meanwhile, the Capna Systems Ares falling film evaporator is a hyper-efficient update to the rotary evaporator, providing the throughput of six liter rotary evaporators while using the energy of just one.
Cannabis Workflows, Part II: Solvents | Ethanol, King Of Classic
Numerous methods and different laboratory instruments have arisen for sample preparation in cannabinoid studies. Learn more, with Glas-Col. Full Extract Cannabis Oil, or FECO, is well-known for the wide array of plant With a higher boiling point than butane, the recovery of ethanol is. What to understand how CBD is extracted from the hemp plant? Read our guide and learn more on the process here.