The Clear Choice for Cannabis Distillation Equipment

Pope Scientific’s Wiped-Film Short Path Molecular Stills are recognized as the premier machines in the marijuana industry for cannabis distillation, including hemp oil distillation and terpene recovery after extraction. We have led the way worldwide in high-vacuum molecular distillation and wiped-film evaporation equipment, technology, and processing services since 1975. Final purification of THC and CBD to the highest levels of quality, clarity, yield, and product value are readily performed on Pope equipment.

Scalable from 100 Milliliters/day up to 100 Kilograms/hour

We engineer and manufacture an all-encompassing range of distillation equipment sizes — from small lab duty, up to large industrial production units. Our multistage, stainless steel, fully-turnkey skid-mounted systems serve major cannabis production installations requiring capacities anywhere from 10 kg/hr up to 100 kg/hr.

Excellent results are produced, independent of the extraction method used, and whether or not winterization and/or decarboxylation have been performed. Distillate product is optically-clear light-yellow, and separated away from dark residue, chlorophyll, heavy waxes, sugars and salts. THC distillation and CBD distillation produce high value clear shatter or dab, and fine oils for vape and edibles. Terpenes isolation and collection is also possible.

Our classic 2″ Wiped-Film Evaporators [WFE] are found in hundreds of industrial and academic labs, and now have become the most popular post-extraction distillation system for startup cannabinoid processing companies. These systems are typically used to distill from 100 ml/day up to 2 liters/day. Our larger standard glass 4″ and 6″ models are being utilized for greater throughput and are available for up to 5 and 10 liters/day. All Pope Scientific equipment is proudly made in the USA.

Note: For optimal understanding and orientation, it is highly recommended the F.A.Q. section be read completely prior to other sections.


Pope 6” still in operation starting at 24:35

Pope 2” still in operation starting at 1:50

Distillation equipment shown from 25:25 - 26:08 is a Pope Scientific 2" Molecular Still System

BAS Research Featured on Dr. Oz. Using Pope Distillation Equipment. Shown at 3:15 is a Pope Scientific 2" Molecular Still System.

Chris Fertnig, Process & Sales Engineer at Pope Scientific, explains post-extraction distillation at MJBizConNEXT.

Pope Scientific THC Distillation Equipment Takes It Beyond Extracted Purity


  • Is molecular distillation similar to extraction?
  • Are solvents required for the process?
  • What advantages does a Pope wiped film molecular still [WFMS] offer?
  • Is this a fractional distiller, a short path still or a rotovap?

You’ve got questions about cannabis distillation. We’ve got the answers…and the solutions.

How It Works

When further post-extraction purification of THC and/or CBD for product purity and clarity is needed, distillation is a good choice because the mixture contains components with different boiling points. However, the components are heat sensitive as well as viscous.

The Pope continuous-flow technique is superior to batch because it utilizes high vacuum to decrease evaporation temperatures, plus efficient wiper blades and short residence time (seconds) to decrease heat exposure.

One pass typically distills off any remaining volatile solvents, water and gases, and another pass distills off and collects the main product—normally THC distillate or CBD distillate. Other passes can be performed for terpene removal.

Pope Nutsche Filter-Dryers are known and used worldwide for critical high purity separations of liquids and solids; and are now being used in the cannabis industry.

With this separation being a critical operation because it is often the final step in the entire manufacturing process, our Nutsches are preferred—proven for CBD crystalizing isolation to 99+%

In this cannabinoid application, as in most applications, the remaining solid is the valued product—highly pure crystals from reaction and precipitation. This CBD isolate or extract is cannabidiol in its purest form, with additional cannabinoids like THC, terpenes, and plant components stripped out.

Pope’s designs are available in lab bench through pilot plant and production scale, in volumes from 0.2 through 1000 liters.

Pope Scientific Four-Stage Cannabis Distillation Systems

Designed to give you the greatest amount of versatility, value and performance.  Pope is excited to share the latest in Canna Distillation Systems. The concept of two passes for distillation of cannabinoids is understood by many; one pass for devolatilizing or ridding the feed material of gasses, ethanol, water, light terpene ends, etc., so that the next, cannabinoid distillation pass can be performed with greater vacuum, throughput, purity, yield and product clarity.   So why four passes?  To accommodate the widest ranges in starting materials, extraction methods and other pre-distillation steps, and optimization of throughput and choices of finished products. Different operating modes are incorporated for this.

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Up to 96% Purity

Pope distillation stills to purify cannabinoids are currently being used in the United States and overseas by cannabis startups and collectives, mid and larger size firms, research labs and pharmaceutical companies.

Pope Cannabis Distillation