Many factors affect differences in how Extra Virgin Olive Oils Taste.
• Like grapes olives have thousands of different cultivars. Different olives taste differently.
• Like wine, a master producer can create a beautiful blend of different olives to create their signature oils.
• You can use a single cultivar or one variety of olive to create a monocultivar olive oil.
• Like grapes the soil also called the terroir can affect the taste of the olive. Is it chaulky or sandy, is it at a high elevation, is it near the sea?
•The amounts and timing of watering can affect the taste of the oil and how much oil is created in the fruit.
• Was the tree infested/ affected by the Olive fly or some other pest/condition?
• Were the olives frozen (frost) while on the tree?
Harvesting and storage methods have a huge effect on the quality of the oil produced.
So you see many things affect flavour and potentially create defects in a bottle of extra virgin olive oil!