How’s is Murphys Manufactured? Very carefully. Our team has partnered with one of the largest growers, manufacturers and distributors of hemp-derived phytocannabinoids in the U.S. This partner makes the raw hemp compounds we use in our products. These products undergo superior processing with a proprietary hemp extraction and purification process that involves supercritical CO2, a commonly used method of extraction. This makes sure that many of hemp’s beneficial phytocannabinoids, terpenes and flavonoids are preserved in the process. The result? The highest quality broad-spectrum hemp oil available. Once extracted, undesirable plant solids like waxes are removed from the oil.
The hemp extract is then separated from the supercritical CO2 used in the extraction process. Once this step is completed, the CO2 is recycled and used again in the distillation process.
The next step is to extract even the most minute traces of THC. THC is the compound found in cannabis that produces the “high” associated with the plant.
Our products are made with proprietary technology to remove unwanted compounds still present in the oil. These compounds include wax, chlorophyll, plant pigments and trace amounts of THC. It is then “washed” and “polished.”
Our lab reports reveal that there is no detectable THC in our products.
Interested in learning more about the various extraction methods? Keep reading.
Extraction is the process of packaging CBD oil by removing the plant flowers. The oil is used for products such as topicals and tinctures. Specific and careful methods must be used for the removal of the hemp flower. You have probably seen extracts like vanilla extract in your local grocery store. The processing is similar because the oil from the vanilla needs to be extracted from the bean prior to being added to the alcohol solution. Only then can you use the extract for cooking. There are several different ways of removing the extract from the plant.
The First Extraction Method
The first extraction method was alcohol. When a medicinal plant is soaked, the character, structure or biochemistry of the plant changes. Ancient civilizations used alcohol extraction for the creation of medicinal herbal tinctures. Alcohol extraction is similar to cooking in your kitchen. When you place cookie dough into your oven, what comes out is completely different. Your dough is transformed into delicious cookies.
The difference is alcohol is used as opposed to heat. This pulls out the plant’s beneficial compounds such as THC or cannabidiol. Ethanol is generally used as the base for the extraction. This is grain-based alcohol. The high proof of the ethanol causes minimal damage while the cannabis is suspended in the liquid. This eliminates the possibility of the product becoming rancid or suffering oxidation damage.
Carbon Dioxide Extraction
The carbon dioxide extraction (CO2) separates the hemp oil from the plant using supercritical carbon dioxide. Supercritical is the CO2 properties of both the gas and liquid state. This is the reason you may have heard this method called (SFE) supercritical fluid extraction. At Murphys, we use CO2 extraction. There are a series of pressurized pumps and chambers exposing the CO2 to extremely low temperatures and high pressure. The final result is the extracted oil. As the extraction begins, pressurized CO2 is held in one chamber with the hemp plant in another.
The next step is pumping the CO2 into the second chamber. The plant material is broken down due to the supercritical CO2. This results in the separation of the hemp and the oil. The oil and CO2 are then pumped into the third chamber. Once the gas has evaporated, the CBD oil remains. The oil will not get you high because the THC content is too low. This method uses expensive machinery. At Murphys, we believe this is the best method for producing Murphys Hemp Oil. We have found this method to be efficient, safe and produce superior oils with up to a 92 percent concentration of cannabidiol despite it being a little more expensive.
The exact nature of carbon dioxide extraction is excellent for producing oil. The pressure and solvent ratios are adjusted to ensure the desired concentration is achieved. The CO2 extraction is used for the creation of numerous different products including essential oils for perfumes, hemp oil, and decaffeinating tea or coffee.
Different types of solvents are used for this type of extraction. This includes natural hydrocarbons and solvents. Any combination of butane and propane are popular because they have a low boiling point. This means the extractors can capture the cannabis essence. This is accomplished once the resin head glands have been dissolved. The terpenes and plant matter can be extracted without using extreme pressure or temperatures. Butane and propane generally need pressure between fifty and 150 PSI. Due to the low boiling point of the solvents, the materials can be extracted with risking heat damage to the cannabinoids or terpenes.
Despite this, at Murphys Hemp Oil Company, we do not believe this process is as effective for Murphys medicinals or Murphys Hemp Oil. This is partially because more moderate operators only process less than 1,000 pounds per day. Along with the artisanal extractors, they prefer using propane extraction technology. The result is a product with a lighter color and rich smell of terpenes. The issue with solvent extraction is the butane system is extremely expensive. This is due to the extra safety precautions necessary to prevent flammable gases from escaping in the larger systems. Unfortunately, this means the facilities and employees are being put at risk.
Ethanol has a low boiling point just like gas and propane. The difference is the compounds can be extracted from the plant without using pressure. Ethanol is not as flammable as butane or propane. It is safer to use for employees in an industrial or urban environment. The slightly higher boiling point of ethanol means the products need to be decarboxylated or distilled to ensure there are no residual solvents in the completed product. Ethanol is different from butane and propane because it is a polar protic. This means there is a positive molecular charge.
This enables the effective binding of ethanol with cannabinoids and terpenes. This can cause negative issues with the equipment in addition to damaging the product. The smaller operations get around this by chilling the ethanol to negative forty degrees Fahrenheit. This eliminates most of the unnecessary fats, waxes and chlorophylls in the finished product.
Steam distillation starts once the water has been heated. The steam moves upwards and directly into the flask. This separates the oil vapors with the CBD. The vapors are captured using a tube prior to being condensed into oil and water. Once collected, the oil and water are distilled to enable to extraction of the CBD oil from the water. Although this technique has been used for essential oils for many centuries, it is not one of the most effective extraction methods.
The Best Method for Extraction
At Murphys Medicinals, our preferred method of extraction is CO2. All mammals exhale CO2. This is consumed every time you eat and mixed with the oxygen in the air then transformed into energy which creates a by-product of both carbon dioxide and water every time you exhale.
This simply means there is more than enough CO2 available. This has led to a lot of creative efforts for CO2 extractions by the researchers and manufacturers. The combination of the right tools, heat and liquid CO2 has enabled the manufacturers to produce extremely powerful and exceptionally pure products. The CO2 extraction does not require any chemical solvents which makes it cleaner. This process extracts what is necessary from the plant much better. This effectively harnesses all of the power of the plant.