买橄榄油时，只买olive oil extra virgin，cold pressed, 不要买标签上写有Olive oil, pure olive, Olive extra light的橄榄油，更不要买Olive Pomace（果渣油).下面英文来自Google.
Olive pomace is the solid residue obtained from the olive oil productionprocess (during pressing or centrifugation). This residue is treated with solvents to extract the oil it contains to obtain crude olive pomace oil. As it is not edible, it has to be refined to obtain refined olive pomace oil.
