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CBD Extraction Methods Explained

 woman in lab putting cbd oil in test tube

Whether you’re just beginning your CBD journey or you’re a long-time user of the hemp plant, you’re likely curious about how this powerful compound is made. While mother nature plays a role in the creation of CBD, the process of CBD extraction is human-led and crucial to making the CBD products you know and love.

The top two extraction methods — ethanol extraction and supercritical CO2 extraction — are preferred by CBD manufacturers interested in retaining quality control...

Different CBD extraction methods may result in varying qualities of CBD products, and this article will explore the most common ways to extract CBD. Read on to find out what goes into your CBD and discover the best CBD extraction methods to help inform your next purchase.

What Happens Before Extraction?

CBD is extracted from the hemp plant, a variation of the cannabis plant known for its low THC content. The hemp flowers are typically used for the extraction, while the rest of the plant material (known as the hemp biomass) is often used for other purposes.

Before the extraction process, it’s typical for the CBD plant to be:

  • Picked and trimmed
  • Dried
  • Finely ground

Depending on the extraction method of choice, other prerequisites may be required.

To produce any CBD product, you’ll also need to grow or source a CBD-rich plant. When shopping for oils, extracts or CBD gummies, look to businesses that offer a transparent view of their hemp-sourcing protocols. 

100% US hemp-derived CBD, quality assurance tests and certificates of analysis are all great measurements of a business's commitment to quality, from the first seed to the final product.

Why Does CBD Need To Be Extracted?

Can the hemp plant be enjoyed without a complicated extraction process? Yes and no. While hemp is used in a variety of industries, the only way to enjoy the mood-boosting 

effects of CBD are through decarboxylation.

To put it simply, decarboxylation is the process of heating hemp or cannabis to release the cannabinoids found within the plant itself.

CBD isn’t the only compound that requires extraction. You’re likely already familiar with a range of products that undergo a similar process, including:

  • Essential oil
  • Seed oil
  • Cannabis oil

These products aren’t extracted from the earth like crude oil. Instead, a chemical process helps unlock the further potential of the natural plant, and the same is true for hemp and hemp oil. The resulting CBD oil can be used in various products such as tinctures (oils), topicals, chewable tablets and edibles.

The same extraction process is also required to create psychoactive cannabis extract, so pay close attention when shopping and investigating extracts to ensure you find the product you’re looking for.

Methods of Extracting CBD

So, what's the best CBD extraction method? There are several effective CBD extraction methods such as:

  • Olive oil extraction
  • Steam distillation
  • Hydrocarbon extraction

However, these processes don’t guarantee a high-quality product and could even result in toxic residue.

The top two extraction methods — ethanol extraction and supercritical CO2 extraction — are preferred by CBD manufacturers interested in retaining quality control, and both methods are safe and commonly used in the food industry as well as for extracting CBD.

#1 Super Cold Ethanol Extraction Method

Ethanol is used in a variety of food-grade products, including nutritional extracts, beer, wine and even whipping cream. It’s also a natural solvent and the key ingredient in this form of CBD oil extraction. 

Ethanol extraction is a great choice for CBD oils and gummies. The process produces an appealing-looking, great-tasting oil for connoisseurs who appreciate the natural taste of CBD oil. 

Consider the following steps that go into this solvent extraction:

  1. Ethanol soak – Plant material is fully submerged in an ethanol solution. Protective gear and safety protocols are essential during the early stages of the process to ensure a quality product and a safe environment.
  2. Filtration – After the plant material has been soaked in ethanol, the solid plant material is slowly filtered out and removed.
  3. Cold factor – The ethanol is chilled to a super-cold temperature (-40°C or below) to ensure that fats and lipids are removed from the hemp extract. Without the cold ethanol, the resulting extract would be noticeably less pure and potentially less effective.
  4. Ethanol evaporation – In the final step of CBD oil extraction, nearly all of the ethanol is removed. The U.S. Food & Drug Administration recognizes ethanol to be Generally Recognized As Safe (GRAS) to consume, but most CBD extracts contain only trace levels of the substance.

Notably, ethanol extraction may offer a safer and more pure CBD product in comparison to hydrocarbon solvent extraction. Chlorophyll, the compound that gives all plants — including cannabis — their green color, is also removed through both the ethanol and supercritical CO2 extraction processes to improve the taste.

Other reasons to consider ethanol-extracted CBD include:

  • Environmentally friendly – With efficient ethanol recovery systems, ethanol from extraction systems can be cleaned, cleared and reused, leaving a smaller environmental footprint. Ethanol is derived from plant material and is considered a renewable resource.
  • Retain cannabinoids – The extraction process minimizes fats, lipids and waxes while keeping in all the beneficial cannabinoids and terpenes. 
  • Consistency – By utilizing super-cooled ethanol, you can expect a standard of quality among CBD products. So long as the CBD is sourced from quality plants, consumers should expect a reliable product.

#2 Supercritical CO2 Extraction Method

This clean, safe and environmentally friendly method has been around for decades and is used to extract CBD from hemp grown on farms across the country, from Oregon to Kentucky. CO2 extraction isn’t just for cannabis products, it’s also used to extract hops to make beer.

The supercritical CO2 extraction method has long been the preferred method for extracting CBD for several reasons, including:

  • Safety – Chemical compounds can cause complications. Fortunately, CO2 leaves little worry for manufacturers and consumers alike. Carbon dioxide is a nontoxic and nonflammable gas that has no impact on human health at normal concentrations.
  • High concentration – This extraction process may yield a stronger or more potent CBD or cannabis extraction. This may be ideal for consumers interested in a full-spectrum product.

How does this CBD extraction process work? Consider the following:

  • Pressurization – The CBD is placed into a pressurized chamber and carbon dioxide is pumped into the extraction chamber. The pressurized carbon dioxide begins to extract the desired phytochemicals from the plant. The term “supercritical” signifies that when solvents are exposed to extreme pressures and temperatures, they fluctuate between intermediate states of solid, liquid and gas.
  • Separation – CO2 extraction separates individual compounds in the cannabis plant during the extraction process, eliminating the need for additional purification.
  • Condensation – Once the extraction is complete, the CO2 is condensed into a liquid form and may be reused for further processing in the future.

Additionally, both ethanol and supercritical CO2 separate cannabis oil into its individual components and make it possible to extract more of a specific cannabinoid. 

So, for example, you could extract 70 percent cannabigerol (CBG), with the remaining mixture containing other cannabinoids, terpenes, etc.

What Happens After CBD Extraction?

The extraction process may take some time, but once the oils have cooled, you’re left with high-quality pure CBD extract.

CBD extract is highly versatile and can be used in the following ways:

  • Concentrated oil – Once the pure CBD is isolated and extracted from the hemp plant, it can be mixed with a carrier like coconut oil, making CBD oil. This oil can be ingested in a variety of ways and offers a convenient and portable option for those looking for CBD on the go. A few drops and you may begin to experience a health and wellness boost.
  • Gummies – CBD extract can be turned into chewy, delicious gummies that provide a fun and casual way to enjoy the effects of CBD.
  • Chewables and tablets – For a quick and simple way to chew up your CBD, you can explore tablets. Think of them as a way to find daily benefits from CBD quickly and simply.
  • Topicals – When combined with various topical ingredients, CBD extract can form a relieving balm that may be applied to your skin to assist with various discomforts or to encourage energy and stamina.

Additionally, CBD extracts may come in three distinct forms, including:

  • Full-spectrum – For those interested in ingesting all the cannabinoids (THC, CBD, terpene) and other natural compounds in the hemp plant, full-spectrum CBD is your best choice. All of these components may work together to provide an “entourage effect” — a powerful synergistic experience for some CBD users.
  • Broad-spectrum – Broad-spectrum CBD is further refined in the CBD extraction process to remove all THC. Broad-spectrum contains 80% to 90% CBD, no THC and a reduced level of other cannabinoids. A great choice for those concerned about THC levels.
  • CBD Isolate – This THC-free alternative is made by isolating CBD and then refining it into a single compound, which results in a nearly 100% pure CBD compound. CBD isolates are mostly found in a tasteless crystalline form.

Now that you’re an expert on CBD extraction, it’s time to learn about other CBD processes. 

For example, can you travel with CBD gummies?

The Purest Extraction From Zebra CBD

How’s that for a CBD education? While you may not be ready to start your own CBD manufacturing business, you do know how to find the very best CBD oil. At Zebra CBD, we’re happy to share everything about our CBD process from our hemp farms to our extraction processes. If you’re wondering if CBD is legal where you live, learn more about CBD laws by state.

As leaders and innovators in the hemp industry, we’re excited to see the market expand, paving the way for new and improved methods of extraction. Whether shopping for our premium CBD oils or our sugar-free gummies, you’ll see we’re committed to continually improving the purity of our premium Zebra CBD products. 

Explore our shop today.


Mercury News. CBD Extraction 101: Popular Methods Explained.

CFH. How to Extract CBD Oil: Different Methods That Works Best.

EPA. Ethanol added to food / beverages and Tier II reporting (i.e., EPCRA Section 312).

John Wood frequently writes for coaching services and health-based organizations. He is a big believer in the power of CBD, and has written extensively on the subject. 

About the Author

John Wood Image

John Wood

After a career in sales, John quit his job in 2004 to become a freelance copywriter. Having taken journalism in college, he had always harbored a desire to earn a living as a writer. John frequently writes for coaching services and health-based organizations. He especially enjoys writing articles that are inspirational, motivating and help make people’s lives better. John is a big believer in the power of CBD, and has written extensively on the subject. Find him at

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