Let’s take a look at how 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 benefit from 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 onto the vessel walls. The extract material only spends a quick amount of time on the wall to limit heat exposure and any degradation for the material.
The close proximity from the condenser for the heated vessel wall provides a short path for your extract to go to. Hence the name, short path distillation process. Since 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 then be collected at the bottom and is now a distillate.
Heavier material like the chlorophyll, sugars, salts, and wax fractions are not able to evaporate off of the surface of the evaporation vessel wall and in addition they travel, via the wiper blades, right into a separate container which is also 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 uses exactly the same principles, just without the wiper system to distribute the extraction material.
Instead, a heated flask is when the extraction material is fed. Gradually, increased heat is used to the extract material inside the feed flask. A vacuum is additionally applied to help in drawing the vapors up into the fractionating tubing. From your fractionating tubing the contents then hit the condensing tube, where the fractions take separate paths.
Just like the wiped film process, the weight of each fraction determines the collection flask.
To improve product refinement, each process can have the extract material run through them several times. Similar to the wiped film process, this setup is also relatively compact and lends well to multiple devices working simultaneously in a smaller space.
Benefits associated with Short Path Distillation – Flavor and “experience” are clearly more consumer-centered advantages, however for producers, there are many more that are included with employing either a quick path distillation process or short path wiped film distillation process.
One particular production advantage is a thing called “continuous feed” which is great for making large amounts of product for longer periods of time with greater consistency.
Where other extraction processes use heated beakers, continuous feed also enables a greater amount of scalability in your production which just isn’t much of a choice with batch mode stills.
High evaporation rates permit more distillates to be captured whilst the relatively low processing temperatures (130-180°C) play a role in the truth that there aren’t any solvents required to move the extract material with the process.
Most significantly, this system 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. So if you are trying to produce a pure CBD product, as an example, choosing the short path distillation process is one of the best methods you can use.
The compact style of short path distillation systems means they are an ideal decision to utilization in operations where large volumes of multiple strains must be extracted. Lastly, these machines are simple to use and they 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 other cannabinoid or terpene you may be opting to distill.
Isolates would be the purest and many potent type of the compound, and they get 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 alter the taste in any respect.
However, an increasing body of scientific reports have found that full-spectrum extracts have several benefits over isolates. The myriad of compounds found in cannabis work together to form what’s referred to as entourage effect, which enhances the effectiveness of the medicinal properties.
As a result, you may want to take the pure isolates created from the short path distillation process and make use of reverse chromatography methods that will result in a full-spectrum extract. This can be especially useful uuubfc creating highly effective CBD products, for example, since the end product can still have no traces of THC, but will continue to have many of the other beneficial compounds found in cannabis.
The beauty with using Molecular Distillation is that you can isolate each specific compound, then combine them together in unique blends which will yield highly specific results. The options are endless when you use technology as precise as short path distillation.