Production of different qualities of oil
In order to meet the demands of our customers from the cosmetics, food and pharmaceutical industries, the quality of the raw materials, processing methods and quality assurance are of crucial importance.
Long-standing relationships with suppliers and experience in purchasing are decisive factors in obtaining high-quality and suitable raw materials. Professional transport and ideal storage form the second important point when it comes to the quality of the end product. The different processing steps ultimately decide whether the oil is used in the cosmetics, food or pharmaceuticals industry.
Natural oils or Post-treated oils are the two main differentiators.
Natural oils are only filtered after extraction; consequently, all the ingredients of the seed are contained. They have a higher proportion of fatty substances, the so-called unsaponifiables. These are partly visible as turbidity and can settle at the bottom of the oil vessel.
Our natural oils are either cold pressed or CO2 extracted.
Cold pressed oils
Cold pressed oil states that the oil was obtained by pressing without external heat and then filtered. (The oil has not undergone refining with chemical solvents and deodorization with steam). The term does not indicate the exact temperature reached. Cold-pressed oils have a limited shelf life and, with few exceptions, should not be heated to high temperatures.
CO2-extracted oils are obtained by extraction in supercritical carbon dioxide. The application of pressure increases the density of the carbon dioxide and produces an effective solvent. The pure oils are subjected to much less stress in this physical extraction process than in other manufacturing methods due to the moderate temperatures and antioxidant CO2 atmosphere.
Post-treated oils are required because often the inherent taste and odor of the species is not desired, or for technical purposes the oil must be free of undesirable fatty compounds.
Our post-treated oils are either deodorized or refined oils.
Deodorizing is a sub-step of refining. It involves treating the oil with steam to remove unwanted substances such as aromatics and colorants. A deodorized oil is odorless and tasteless. Since this is not a chemical process, deodorization is also allowed for organic oils.
Refined oil is almost odorless and tasteless. It is therefore ideal for the production of formulations in organic and natural cosmetics. Refined organic oils are produced by mechanical pressing and subsequent physical refining, with the use of processing aids in accordance with the Organic Regulation.
For all natural as well as post-treated oils, there is another purely physical process.
In this process, called winterization, the oil is cooled down to 5-15°C for a certain period of time. In this temperature range, wax crystals form, which are then filtered off.
The oil remains clear at lower temperatures, e.g. in the refrigerator.
We will be happy to advise you if you still have questions about which oil quality is best suited for your project.