Let’s take a look at the way the short path wiped film Rotary Evaporators works. Where other methods employ solvents to assist the extract material move or flow through the process, these systems make use of the melting points of cannabinoids instead.
These compact systems are set up with a feed vessel sending extract material into a heated evaporation vessel. Inside this evaporation vessel is a rotating wiper blade that evenly distributes the extract material to the vessel walls. The extract material only spends a brief period of time on the wall to limit heat exposure and any degradation to the material.
The close proximity of the condenser to the heated vessel wall offers a short path for your extract to travel to. Hence the name, short path distillation process. As the wiper system moves the extraction material down through the vessel, it evaporates for the condenser which converts it back to your liquid. This liquid will be collected at the bottom and is also now a distillate.
Heavier material like the chlorophyll, sugars, salts, and wax fractions are not able to evaporate off of the top of the evaporation vessel wall and in addition they travel, via the wiper blades, into a separate container which is towards the bottom. A different and chilled evaporator captures the terpenes in their own flask.
The Short Path Distillation Process – The Short Path Distillation employs a setup which uses the identical principles, just with no wiper system to distribute the extraction material.
Instead, a heated flask is where the extraction material is fed. Gradually, increased heat is applied for the extract material in the feed flask. A vacuum is additionally applied to assist in drawing the vapors up into the fractionating tubing. From the fractionating tubing the contents then hit the condensing tube, where fractions take separate paths.
Similar to the wiped film process, the load of each and every fraction determines the collection flask.
To boost product refinement, each process can possess the extract material run through them many times. Like the wiped film process, this setup can also be relatively compact and lends well to multiple devices working simultaneously in a smaller space.
Benefits of Short Path Distillation – Flavor and “experience” are clearly more consumer-centered advantages, but also for producers, there are many more that come with employing either a short path distillation process or short path wiped film distillation process.
One such production advantage is something called “continuous feed” which is ideal for making large amounts of product for extended amounts of time with greater consistency.
Where other extraction processes use heated beakers, continuous feed also provides for a better level of scalability to your production which just isn’t a lot of a choice with batch mode stills.
High evaporation rates allow for more distillates to get captured while the relatively low processing temperatures (130-180°C) contribute to the truth that there aren’t any solvents necessary to move the extract material with the process.
Most importantly, this technique will separate cannabis into high concentrations of THC and CBD distillates. In fact, short path distillation can bring about cannabis distillates that are 99% pure. So when you want to create a pure CBD product, as an example, working with the short path distillation process is probably the best methods you can use.
The compact form of short path distillation systems makes them an excellent choice to use in operations where large quantities of multiple strains have to be extracted. Lastly, this equipment is easy to use and are largely automated in their function.
Isolate versus Full-Spectrum – Making use of the short path distillation or wiped film distillation process brings about pure isolates – whether that be THC, CBD, or some other cannabinoid or terpene you may be deciding to distill.
Isolates are definitely the purest and many potent kind of the compound, plus they have some benefits like being completely odorless and tasteless. This can be great if you work with these compounds in foods or beverages, for example, as it does not alter the taste in any respect.
However, an increasing body of scientific studies have found that full-spectrum extracts have numerous benefits over isolates. The multitude of compounds found in cannabis work together to create what’s known as the entourage effect, which enhances the strength of the medicinal properties.
As a result, you may want to accept pure isolates made out of the short path distillation process and make use of reverse chromatography methods that can result in a full-spectrum extract. This can be especially useful uuubfc creating very effective CBD products, for instance, since the end product can have no traces of THC, but will continue to have many of the other beneficial compounds found in cannabis.
The sweetness with using Molecular Distillation is that you simply can isolate each specific compound, then combine them together in unique blends that can yield highly specific results. The options are endless when using technology as precise as short path distillation.