Label verification

Make sure that it's labelled as 'extra virgin'; labels with 'virgin, light, pure or just olive oil' could indicate lower quality.

Look for harvest information

Check for harvest date and producer or mill name as these specifics indicates authenticity and quality.

Details matter

Look for specifics such as olive variety, producer or estate names, and free fatty acidity level (FFA), which are typical for higher quality oils.

Certification seals

Look for seals such as PDO, DOP or COOC.

Trust Australian and Chilean EVOO

Oils from these countries often meet the stringent standards and are fresher due to less mixing of older oils.

Taste them

Fake oils will taste dull, greasy, and even waxy or crayon like.

Source: https://www.wionews.com/web-stories/entertainment/lifestyle/6-ways-to-spot-fake-olive-oil-1702737872016