Transfer the oil from the can or the plastic packaging to a glass bottle. If you want to preserve it for a long period, place it in the refrigerator. Do not be alarmed if you notice a change in colour because as soon as you take it out of the refrigerator and leave it stand at room temperature it will regain its colour. Refined seed oils sustain special processing that is called "hydrogenation" and rarely blurs in contrast to pure olive oil.