What makes Kosterina EVOO different from supermarket olive oil?

Most supermarket EVOOs contain 50-150 mg/kg of polyphenols. Kosterina Original EVOO has 500+ mg/kg -- verified by independent third-party testing after every harvest. We use only early-harvest Koroneiki olives from the Peloponnese, Greece, cold-pressed within hours of picking. More antioxidants, bolder flavor, measurably better health benefits.