Introduction
CBD, also known as cannabidiol, is a cannabinoid found in hemp. In recent years, it has gained popularity due to its potential health benefits. However, to take full advantage of its properties, it is important to know the best way to extract CBD from hemp.
Extraction Methods
Solventless Extraction
One of the simplest and safest methods to extract CBD from hemp is solventless extraction. This method involves applying heat and pressure to hemp flowers and leaves to release the trichomes, which contain CBD and other cannabinoids. Although it is an economical method and does not require additional tools, the result can be poor and impractical, since the purity of the final extract cannot be controlled [[6]].
Extraction with Olive Oil
Another popular method of extracting CBD from hemp is olive oil extraction. In this process, decarboxylated plant material is mixed with olive oil and heated for several hours. The CBD and other cannabinoids bind to the fats in the oil, creating an infused product. Although it is relatively safe and can be done at home, it has a low CBD content compared to other more professional methods [[8]].
Solvent Extraction
Solvent extraction is another commonly used method to extract CBD from hemp. It involves circulating a liquid solvent, such as butane or ethanol, through the decarboxylated hemp to separate the cannabinoids and terpenes. Although it is cheap and offers a considerable degree of purity, handling the solvents can be dangerous and the resulting oil can be contaminated [[10]].
CO₂ Extraction
CO₂ extraction is considered one of the most efficient and safest ways to extract CBD from hemp. In this method, CO₂ is manipulated into a supercritical state and pumped through the plant material to separate essential cannabinoids and terpenes. Although it is an industrial process and requires experience, it offers high quality results and is environmentally friendly [[12]].
Conclusion
In summary, there are different methods to extract CBD from hemp, each with its advantages and disadvantages. Solvent-free extraction is economical but may result in a low purity extract. Olive oil extraction is safe and can be done at home, but has a lower CBD content. Solvent extraction offers a considerable degree of purity, but can be dangerous and the oil may be contaminated. Finally, CO₂ extraction is efficient and environmentally friendly, but it is an industrial process and requires experience [[6]] [[8]] [[10]] [[12]].
