I'm not an expert but just from taste, most supermarket extra virgin olive oils are not real or perhaps diluted or mixed. My family produces some and consume i

I'm not an expert but just from taste, most supermarket extra virgin olive oils are not real or perhaps diluted or mixed. My family produces some and consume it ourselves or give to friends/family for free. The real stuff has such a amazing taste that after trying one supermarket brand after the other, you start realizing there is no way what you are buying is the real stuff. I have no scientific evidence...just my simple taste buds. Anyone who has consumed real olive can probably relate.