Let’s take a look at how the short path wiped film Rotary Evaporators works. Where other methods employ solvents to help the extract material move or flow with the process, these systems make use of the melting points of cannabinoids instead.
These compact systems are set on top of a feed vessel sending extract material right into a heated evaporation vessel. Inside this evaporation vessel is a rotating wiper blade that evenly distributes the extract material onto the vessel walls. The extract material only spends a short period of time on the wall to limit heat exposure and then any degradation towards the material.
The close proximity from the condenser towards the heated vessel wall supplies a short path for that extract to travel to. Hence the name, short path distillation process. As the wiper system moves the extraction material down from the vessel, it evaporates to the condenser which converts it back to some liquid. This liquid will then be collected at the bottom and is also now a distillate.
Heavier material like the chlorophyll, sugars, salts, and wax fractions are unable to evaporate from the surface of the evaporation vessel wall and so they travel, via the wiper blades, right into a separate container that is also towards the bottom. Another and chilled evaporator captures the terpenes in their own individual flask.
The Short Path Distillation Process – The Short Path Distillation employs a setup that uses the identical principles, just minus the wiper system to distribute the extraction material.
Instead, a heated flask is where the extraction material is fed. Gradually, increased heat is applied to the extract material in the feed flask. A vacuum is additionally applied to help in drawing the vapors up to the fractionating tubing. From the fractionating tubing the contents then hit the condensing tube, where the fractions take separate paths.
Just like the wiped film process, the load of every fraction determines the collection flask.
To further improve product refinement, each process can hold the extract material run through them several times. Like the wiped film process, this setup is additionally relatively compact and lends well to multiple devices working simultaneously in a smaller space.
Advantages of Short Path Distillation – Flavor and “experience” are clearly more consumer-centered advantages, but also for producers, there are lots of more that come with employing either a quick path distillation process or short path wiped film distillation process.
One such production advantage is a thing 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 enables a larger amount of scalability in your production which just isn’t a lot of a choice with batch mode stills.
High evaporation rates enable more distillates to get captured as the relatively low processing temperatures (130-180°C) play a role in the fact that there aren’t any solvents needed to move the extract material from the process.
Most significantly, this technique will separate cannabis into high concentrations of THC and CBD distillates. In reality, short path distillation can lead to cannabis distillates that are 99% pure. If you want to make a pure CBD product, for example, choosing the short path distillation process is among the best methods you can use.
The compact design of short path distillation systems means they are a perfect decision to use within operations where large amounts of multiple strains need to be extracted. Lastly, these machines are easy to use and are largely automated inside their function.
Isolate versus Full-Spectrum – Utilizing the short path distillation or wiped film distillation process brings about pure isolates – whether that be THC, CBD, or any other cannabinoid or terpene you may be deciding to distill.
Isolates would be the purest and a lot potent kind of the compound, and they also get some benefits like being completely odorless and tasteless. This really is great if you use these compounds in foods or beverages, for instance, as it does not change the taste in any way.
However, a developing body of scientific studies have found that full-spectrum extracts have many benefits over isolates. The multitude of compounds found in cannabis work together to form what’s referred to as entourage effect, which enhances the effectiveness of the medicinal properties.
Consequently, you may want to take the pure isolates created from the short path distillation process and use reverse chromatography methods which will result in a full-spectrum extract. This can be especially useful uuubfc creating highly effective CBD products, for example, because the end product can have no traces of THC, and definitely will continue to have many of the other beneficial compounds found in cannabis.
The wonder with using Molecular Distillation is that you can isolate each specific compound, then combine them together in unique blends that will yield highly specific results. The possibilities are endless when using technology as precise as short path distillation.