Let’s take a look at the way the short path wiped film Rotary Evaporators works. Where other methods employ solvents to aid the extract material move or flow through the process, these systems take advantage of the melting points of cannabinoids instead.
These compact systems are set up with a feed vessel sending extract material right into a heated evaporation vessel. Inside this evaporation vessel is actually a rotating wiper blade that evenly distributes the extract material on the vessel walls. The extract material only spends a quick period of time on the wall to limit heat exposure as well as any degradation towards the material.
The close proximity from the condenser to the heated vessel wall offers a short path for your extract to go to. Hence the name, short path distillation process. Because the wiper system moves the extraction material down through the vessel, it evaporates towards the condenser which converts it back to your liquid. This liquid will be collected at the bottom and it is now a distillate.
Heavier material like the chlorophyll, sugars, salts, and wax fractions are unable to evaporate off of the surface of the evaporation vessel wall and in addition they travel, using the wiper blades, right into a separate container which is towards the bottom. A separate and chilled evaporator captures the terpenes in their own individual flask.
The Short Path Distillation Process – The Short Path Distillation employs a setup that utilizes exactly the same principles, just minus the wiper system to distribute the extraction material.
Instead, a heated flask is the place where the extraction material is fed. Gradually, increased heat is applied towards the extract material within 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, in which the fractions take separate paths.
Just like the wiped film process, the weight of each and every fraction determines the collection flask.
To boost product refinement, each process can possess the extract material run through them several 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.
Advantages of Short Path Distillation – Flavor and “experience” are obviously more consumer-centered advantages, but for producers, there are lots of more which come with employing either a short path distillation process or short path wiped film distillation process.
One production advantage is a thing called “continuous feed” which is ideal for making large quantities of product for longer periods of time with greater consistency.
Where other extraction processes use heated beakers, continuous feed also enables a better amount of scalability to your production which just isn’t a lot of an option with batch mode stills.
High evaporation rates permit more distillates to become captured as the relatively low processing temperatures (130-180°C) contribute to the fact that there aren’t any solvents needed to move the extract material through the process.
Above all, this method will separate cannabis into high concentrations of THC and CBD distillates. Actually, short path distillation can lead to cannabis distillates which are 99% pure. So if you are trying to create a pure CBD product, for example, choosing the short path distillation process is one of the best methods you can use.
The compact design of short path distillation systems ensures they are an excellent decision to utilization in operations where large amounts of multiple strains must be extracted. Lastly, these machines are user friendly and therefore are largely automated in their function.
Isolate versus Full-Spectrum – Using 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 opting to distill.
Isolates are the purest and most potent kind of the compound, plus they have some benefits like being completely odorless and tasteless. This can be great if you are using these compounds in foods or beverages, as an example, as it will not change the taste in any respect.
However, an increasing body of scientific research has found that full-spectrum extracts have many benefits over isolates. The myriad of compounds found in cannabis work together to create what’s known as the entourage effect, which enhances the potency of the medicinal properties.
As a result, you may want to accept the pure isolates made out of the short path distillation process and use reverse chromatography methods that can result in a full-spectrum extract. This can be especially useful uuubfc creating very effective CBD products, for example, because the end product can have no traces of THC, and can still have many of the other beneficial compounds found in cannabis.
The beauty with using Molecular Distillation is that you simply can isolate each specific compound, then combine them together in unique blends which will yield highly specific results. The number of choices are endless when using technology as precise as short path distillation.