Does the colour of the olive oil say anything about its quality?
Not quality, but it can tell you other things. The colour of an olive oil is related to the amount of chlorophyll it contains. Olives are picked early in the season tend to make green coloured oil as they contain higher levels of chlorophyll. Olives harvested late in the season will typically produce more golden coloured oils due to a higher level of natural occurring levels of carotene like substances. Both oils may be technically equivalent in quality but very different in style. There are also many examples of green coloured oils that taste remarkably ripe, and golden oils that have strong grassy herbal characters. To make matters more complex, many strongly green coloured oils will turn a more golden colour when stored. So don‟t place too much emphasis on colour. Incidentally if you purchase a very green looking oil make sure that it is stored in a dark bottle in a dark place. The stuff that makes it green (chlorophyll) helps start the reaction that makes oils rancid, but only in t
