The process of olive oil extraction involves separation of oil from the olive drupes so that they are ready for consumption. Science indicates that olive is rich in oil in the sense that every cell is composed of oil. Some people may choose to extract oil from olive without using chemicals while others believe that olive oil can only be separated fully using chemical solvents. Though the physical method is slower, it produces olive oil that is safe from any possible side effects. On the other hand, the oil that is extracted using hexane, requires that the whole process is handled with care so that any contaminants do not infiltrate the oil.
It is good to ensure that the olives are washed well to rid them of contaminants such as soil. When you fail to wash them, it might be impossible to avoid some sense of soil taste in the final product. People that clean their olives before the process of oil extraction starts are more likely to produce excellent oil as compared to those ones that do not. It is also impertative to treat this process with care so that production of the oil oxidation enzyme is reduced as it could compromise the quality of the final product.