[efficax]

the 100% california stuff is genuine, although a blend from california farms (so not single olive estate, which the best stuff is. i think they also sell single olive oils but they are very expensive). The blended stuff from south american olives is also probably real. It certainly tastes real if not as nice and peppery as the good stuff. If you're ever in northern california a lot of the wineries in sonoma / napa also grow and press olive oil, those are worth grabbing and savouring. wonderful by the spoonful.