How is extra virgin olive oil different from regular olive oil?

Extra virgin olive oil (EVOO) comes from the very first cold-press of fresh olives and must meet strict chemical standards, including a free acidity below 0.8%. Virgin olive oil comes from the second press. Pure or light olive oil is refined, stripping most antioxidants and flavor. Kosterina far exceeds the EVOO standard: our Original EVOO has 500+ mg/kg polyphenols and our Organic Everyday has 350+ mg/kg -- both significantly above the EU authorised health claim threshold.