Different CBD Oil Extraction Methods
The practice of CBD oil has increased in the wake of the growing popularity of CBD. There are various methods for extracting oil from either industrial hemp or the marijuana plant.
In this article, we’ll look at the different methods of extracting CBD oil and how they affect the quality of the final product.
CO2 Extraction Method:
The CO2 (carbon dioxide) extraction method is divided into three categories: supercritical, subcritical and mid-critical categories. The supercritical method is by far the most popular in the industry. This is probably because it produces the purest form of CBD oil.
In the supercritical method, pressurized CO2 is used to extract CBD and other phytochemicals from the plant. This extraction method, which is normally carried out using expensive equipment, involves freezing the CO2 gas and then using it to remove the oils from the plant. This extraction method is known to be 90% efficien.
Olive Oil Extraction Method:
This method is so easy that it can be conducted even in a home. However, it will not give you the purest form of CBD oil. This method is initiated by heating hemp or marijuana plant at preferably 248 degrees Fahrenheit for almost an hour.
Hydrocarbon Extraction: This extraction technique involves using light hydrocarbon components like butane, pentane, and propane as solvents to extract CBD oil from the plant. These hydrocarbon components usually have a low boiling point. Although it is cheap and easily implementable, this technique is generally considered non-reliable as the extracted oil has a lower concentration of CBD. Not to mention that the extracted oil also has
Lipid Extraction: It may not be exactly the most popular but this is one of the easiest methods. This extraction involves using lipids to suck and condense the compounds in the hemp plant. Lipid extraction relies on organic coconut oil rather than harsh solvents or CO2 to extract CBD from plants.
Post CBD Extracting Process
The CBD extraction process is usually followed by one of two processes: Activating via Decarboxylation or Purifying via Winterization. Both these process helps in further refining and purifying the oil.
Activating via Decarboxylation: Though the name sounds fancy, this is a simple process where the CBD oil is heated to remove undesirable acids like CBDA (Cannabidiolic acid), THCA (
Purifying via Winterization: Although this is optional, several companies use it for purification of CBD extract oil. This purification method eliminates several undesirable ingredients like fatty acids, plant materials, chlorophyll, and terpenoids.
This method is initiated after soaking the CBD extract in alcohol and freezing it to wade out all the contaminats. The final result is a more concentrated extract. The one disadvantage of this purifying method is that it also removes terpenes from the extract, which may not be the goal.