Oil produced by AL FRESHCO FOODS, extracted by the traditional methods, are preservative free oil is packaged as it is. There are no additives or preservatives that go into the extracted oil. This way, the oil you use is as natural as it can be. Industry produced oils on the other hand are refined using chemicals, preservatives are added to increase shelf life. These oils, apart from losing their natural nutrients, also cause health hazards due to the addition of these chemicals.