Frequently Asked Questions

Cannabis Distillation FAQ

A short path distillation unit consists of a short path evaporator combined with a wiped film evaporator with an internal condenser in a single apparatus. A wiping system spreads the feed material onto the heated internal evaporator surface just like in a wiped film evaporator. Unlike in a wiped film evaporator, in a short path evaporator the vapors are condensed on a condenser located inside the evaporator. The distance between the heated surface and the condenser surface is very short, hence the term Short Path.
A rotating wiper system distributes the crude product to a film on the inner surface of a heated pipe. The wiping system speeds up the evaporation process by keeping the product film turbulent so that the heat transfer and mass transfer are optimised. The lower boiling fraction of the raw material evaporates out of the product film within a short time; the residence time of the product at the evaporator wall is very short. The vapours are condensed on an external condenser. The concentrate is continuously discharged out of the bottom part of the evaporator. The processing of viscous or crystallising substances at pressures down to 1 mbar is possible.
VTA is a specialist in thermal process engineering. The company designs and manufactures thin film and short path distillation plants for laboratory and pilot purposes. You can view a VTA laboratory model here
Butane Hash Oil, or BHO is the essential oil extracted from the cannabis plant using Butane as a solvent. BHO extraction can be extracted from fresh or cured material. The result is a mix of cannabis concentrate, waxes, cannabinoids and terpenes. Our cannabis distillation equipment can be viewed here with a video demo.
The Short Path Distillation Plant VKL 70-5 has a throughput of 1500ml per hour for cannabis distillation using winterized BHO (Butane Hash Oil) or winterized CO2 oil.
Yes! Our wiped film evaporator, specifically the Short Path Distillation Plant VKL 70-5 is a continuous feed system since the feed tank is not under vacuum.
Yes, our wiped film evaporator is fully jacketed to help maintain a consistent temperature throughout the cannabis distillation process.
Root Sciences provides a commercial-scale solution for cannabis distillation. We provide full machine assembly, testing and training to allow you to produce distillate on day one using our wiped film evaporator!