Traditionally, edible oils are prepared by crushing their oilseeds, grains, and nuts using a stone mill and a wooden pestle. Crushed and pressed to extract the oil. The entire process depends upon the pressure and force without using the heat that makes the oil is healthier than others. Hence the term called cold-pressed oil. There was no heat generated in the extraction process in the oilseeds. In this process, the oil retains its true nutrition and aroma.
With large-scale industrial manufacturing, however, the oils are extracted using intensive mechanical and chemical processes. Temperatures of over 180 degrees Celsius and high pressures are employed for extraction. The resulting seed pulp and oil are washed in a hexane solvent bath and then steamed again to squeeze out more oil. This process strips the oils of their nutritious benefits and a natural flavor, aroma completely. And breaks down the healthy fatty acids in oilseeds to harmful trans-fats.
The following are the common oils manufactured through the cold-pressed process.
- Olive oil
- Coconut oil
- Flaxseed oil
- Blackcurrant oil
- Borage oil
- Walnut oil
- Sesame oil
- Groundnut oil
- Almond oil
- Hemp seed oil
Heat destroys one of the antioxidants agents which protects our cells. Cold-pressed oil contains pure and fully natural oil and it contains vitamin E. So hair growth will be fast and no side effects to using this oil and it recover hair fall. Alternatively, the use of cold-pressed oil in cooking makes it cholesterol-free and it contains antioxidants that are boosting our immunity system.