Several factors determine how good (or bad) and how safe a CBD item is. One of these determinants is the method of CBD extraction. To manufacture a CBD item, it is essential to take out cannabidiol and any other cannabinoid of industrial hemp. This is done through many different methods, and each has its pros and cons. There is still no industrial standard CBD extraction technique, but many parties regard some methods in this list as safer than the others.
Supercritical CO2 Extraction
In this method, carbon dioxide is used in the form of a solvent. It involves no risks for contamination, plus it is not volatile like the procedures that use butane, propane, or ethyl alcohol for extraction. So cannabinoids extracted with it are safer for consumer health.
People have been using it for several years to remove caffeine from coffee. For a solvent, carbon dioxide is devoid of all chemicals, so it enables a safe method to make a drinkable and decaffeinated coffee item, with no possibility of residual contamination. You might know about businesses that use some hydrocarbons to achieve this, but no manufacturer with a good reputation uses denatured alcohol for the purpose. The same should apply to businesses that do CBD extraction.
A rather common way of extracting phytocannabinoids from industrial hemp is through hydrocarbon. In the method, a very volatile solvent like propane or butane is used to remove the desired amount of cannabidiol from the plant. The solvent is eliminated with heat, which will then help to produce cannabidiol oil that human beings can consume.
There exist many things to consider in this particular extraction process, and one of these is the volatile characteristic of the said solvents. There exist many documented incidents of hydrocarbon extraction processes that went awry, and consequently, brought about property fires, explosions, and even demise. Reports of the hazardous mistakes are less common at proper facilities, but extracting cannabidiol with volatile solvents is riskier for workers and others.
There exist no perfect means to do away with hydrocarbon solvent content in the end product. There will be a tiny quantity of it in the item, so it poses some amount of risk to consumer health. The continuous application of a product made with the CBD extracted through propane or butane will mean taking in either solvent to the human body.
One more prevalent method of CBD extraction involves the utilization of ethyl alcohol. It is one of the common solvents utilized to take phytocannabinoids out of cannabis sativa. Ethyl alcohol may be ‘generally recognized as safe’, but the ‘food-grade’ form of it is pretty pricey. This means the manufacturer will have to spend much money on food-grade ethyl alcohol so that it can be used for phytocannabinoid extraction. For this reason, several manufacturers turn to denatured ethanol.
While less pricey, there are many different possible contaminants in denatured ethyl alcohol, including ketones, methanol, and isopropyl alcohol. Some amounts of these toxic substances may end up in CBD distillate. In spite of this, the Food and Drug Administration categorizes the said substances as ‘safe’, plus it allows using maximum amounts of these in the end product.
There exist many unknowns in regards to the continued ingestion of chemical substances that cause the denaturation of biological compounds, such as proteins. There is no substantial evidence that the ingestion of denaturants has no negative effect, but what if it has? You cannot rule it out until and unless the aforesaid evidence exists.
Extraction With Olive Oil
This is the oldest existing way of extracting cannabidiol from the industrial hemp plant. Several CBD enthusiasts regard it as the finest, safest, and the most inexpensive method of the lot.
The procedure starts with decarboxylating raw hemp materials to the preferred temperature, to activate the chemical compounds in the herb. The plant matter and olive oil are blended and reheated. Phytocannabinoids are extracted in this stage. Olive oil does not evaporate, so the consequent extract will be less concentrated than the compounds extracted through other methods. The CBD dose that you will use will also need to make up for that.
The thing with this method is that olive oil is very perishable, so manufacturers should keep it somewhere cool and dark. So, the method does not work well for many of them and customers.
What Do Manufacturers Do After Extracting Cannabinoids?
The compounds extracted from industrial hemp go through a procedure referred to as ‘winterization’, where these substances will be refined more. For an uninitiated, the term ‘extract’ refers to the compounds taken out of industrial hemp. After winterization, the extract will not have any solvent, wax, chlorophyll, and/or unwanted fat. This helps to produce a clean product having terpenes, minor phytocannabinoids, and 70 to 90% cannabidiol.