For something we use every day, olive oil is remarkably misunderstood. Should you cook with it? Is greener better? Does cloudy mean artisanal? And what about that peppery cough? After 30+ years in Tuscany and training as an olive oil taster, I've heard them all. For the final chapter of our olive oil series—at least for now!—let's bust 10 of the biggest olive oil myths.