How is our Hemp Oil Made

14 May, 2019


We have been getting a lot of enquiries lately on exactly how hemp oil is made so we aim to address these questions by putting together this page of information.

The first thing that is done, way before the seed even makes it near where it will be pressed into oil, is that the seed is cleaned to 99.99% clean. This is done to remove all possible leaf matter as well as dirt and contamination from other crops. Since the seed itself contains no THC, the only way the oil can possibly have any measurable levels of THC is if they have been contaminated by the outer protective leafy matter that contains the seed so the cleaning stage makes sure the leaf matter has been removed.

The seed is then loaded into hoppers that empty into a series of cold expeller press heads. These heads extract the oil by extruding the seed into long chunks we call hemp cake and separating the oil in a corkscrew type process. This does create a fair bit of friction and with friction comes heat. We understand how important it is to minimize the head during a cold press and the process used does just that. The highest temperature that occurs during pressing the seed for oil is 40ºC at the press head and the oil is exposed to those temperatures for several seconds only before it quickly cools as it is expelled through the oil drain holes in the press cylinder. Already by this point the oil has cooled to 32ºC or cooler.

Once the oil enters the holding reservoir, it has further cooled to below 20ºC. The fresh hemp seed oil is then fed into a stainless steel cold-filter filtration process. This filter removes any suspended solids from the oil and produces a top quality, clear, food grade hemp seed oil. The oil is then drained into a stainless steel storage reservoir.

During the entire pressing process the oil is flushed with nitrogen gas to remove and displace any oxygen that might be resent. The nitrogen gas is also used in the stainless steel storage reservoir to further remove any suspended oxygen molecules from the oil. The oil is then stored in the stainless steel reservoir until it is needed for packaging, where it is added to bottles, jugs, pails or drums using nitrogen gas to maintain an oxygen free environment.

Since cold pressing is described by the American Oil Chemists Society as using an expelling process to extract oil from vegetable seed at temperatures under 50ºC, the process used to produce our hemp oil exceeds those standards and therefore can be considered cold pressed.

Since the oil is also always produced in a first-press, the cold-pressed hemp seed oil produced using this process can also be considered a virgin oil.

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