CBD Extraction Methods

Updated: Mar 29

If you are curious about how your CBD oils are made, this post is for you. The process of CBD extraction is advanced and requires high-tech equipment to produce clean and potent products. Without the extraction process, the CBD industry would be limited solely to hemp flowers, and we would not have the huge array of oils, gummies, topicals, etc.



Let’s start with some definitions first:


Full-Spectrum means that the whole plant was used in the oil extraction process. The hemp plant contains over 480 phyto-compounds including cannabinoids, terpenes, flavonoids, and essential fatty acids. With Full-Spectrum, the percentage of THC contained is kept under 0.3% while still reflecting the original profile of the hemp plant. This is why full-spectrum

CBD oil is the most desired form of CBD among consumers.


Broad Spectrum oil is Full-Spectrum oil that has had only the THC compound completely taken out. Broad Spectrum is not as effective as Full Spectrum.


Isolate is CBD in its bare form. It consists of only cannabidiol. It does not contain any other cannabinoids or terpenes. It can then be infused into a wide range of products such as tinctures, edibles, and topical products. Isolate is considered to be the least effective form of CBD.


What is the Difference Between Solventless & Ethanol Extraction?

To answer this question, we need to get a little technical. There are two main methods used by Hanover Hemp – solventless rosin process and cryogenic ethanol processing. Each of these methods has specific equipment and processes utilized.


Processing Methods and Equipment Used by Hanover Hemp

Solventless Rosin Process

A Mechanical Trichome Separator (MTS) separates trichomes from hemp flower without the use of chemicals or solvents. The trichomes are then strained and pressed through micron bags using heat and immense pressure to produce a pure oil which can then be made into products. Trichomes are considered the “goldmine” of the plant, they are the fine hair-like outgrowths or appendages on the hemp flower. These trichomes produce resin that contains cannabinoids, such as tetrahydrocannabinol acid and cannabidiol acid.


Cryogenic Ethanol Processing

First, a Centrifugal Wash System soaks, spins, and extracts the hemp oil from the hemp flower or biomass. Then a Beverage Grade Filtration Skid removes undesired lipids, fats, and chlorophyll, as well as any remaining particulates. Last, Evaporators remove the ethanol using vacuum pressure, agitation, and heat.


Is Hanover Hemp’s CBD Sent to a Lab for Quality Testing and Analysis?

Yes! All of our CBD extract is sent out for compliance testing at an ISO accredited, Virginia State approved testing facility several times before being used to create our finished products. The same goes for our formulation division. When a batch of products is completed, it is again sent out for testing before being sent to the consumer.

Compliance testing includes a full panel test measuring levels of CBD, THC, minor cannabinoids, terpenes, residual solvents, pesticides, heavy metals, mycotoxins etc. All this goes to say, you can trust when our product says a certain milligram dose of CBD. You can be reassured that you are taking a fully tested product with accredited analytics to back it up.


Do You Use Organic Farming Practices?

All hemp is grown on our farm in Hanover, Virginia. All of our extraction as well as our final products are formulated at Stratus Labs in Richmond, Virginia.


Our hemp is grown completely organically; no pesticides or synthetic fertilizers used in growing process.


Are Solventless and Solvent-Free Interchangeable Terms?

Solventless and solvent-free are not the same thing. Solvent-free means there are no measurable amounts of residual extraction solvent remaining in the product. Solventless means that no solvents were used in the extraction process.


Does Hanover Hemp Create Hemp Rosin?

Yes, it is used in the tinctures. Here are a a couple examples of tinctures that use our hemp rosin.


What is a CBD Tincture?

A CBD tincture is made from oils that have been extracted from different parts of the hemp plant. After these oils have been extracted, they are suspected in a carrier oil – at Hanover Hemp we use organic MCT oil as the carrier oil. Other oils that might be used include jojoba oil or olive oil. The suspension in oil and the addition of flavors (such as pina colada, blueberry, or strawberry) helps create a smooth, milder taste.


Please note the CBD in our tinctures is emulsified in organic MCT oil (medium chain triglyceride oil), which is derived from coconut oil. If you have a nut or coconut allergy, you should not take products made with MCT oil.


How Should I Store My CBD Tinctures?

CBD oil tinctures have quite a long shelf life, but they should be stored in cool, dark areas for best quality. CBD oil tinctures may last as long as 1-2 years but should be checked to determine if the oil has gone bad. A rancid smell or off-flavor with a tiny taste test is telling of an oil that has gone bad, and should be thrown out.


CBD oils are a great option when you are looking for consistent potency and an easy way to adjust dosage. CBD oils also have a long shelf life, as mentioned.


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