Discovering the proper steps for identifying good-quality olive oil is similar to the process of tasting wine. Katerina Mountanos, a Greek-American olive oil sommelier and founder of the olive oil brand Kosterina, shares the technique for tasting olive oil like an expert. According to Mountanos, it’s important to prep the olive oil by warming it in a small glass, examining the aromas, and then, analyzing the flavors. Additionally, she advises paying attention to the packaging, harvest and expiration dates, labels, and prices when looking for high-quality olive oil at the store.