Can you tell if your olive oil is REALLY extra virgin? MailOnline visits Spain and discovers 80% of the industry is fraudulent

MailOnline travelled to Casas de Hualdo estate – a multi-award-winning olive oil brand that presses its own olives on the estate with its own state-of-the-art machinery.

Think that extra virgin olive oil you want to bring back from your continental travels is the real deal? Think again. Around 80% of olive oils labelled extra virgin in stores globally aren’t actually extra virgin, according to an industry expert in Madrid.