Olives must be harvested at the right time to obtain the largest possible amount of oil without increasing the acidity. The experienced olive grower knows exactly when the olives have to be harvested. It is a fact that if olives are picked too early, they may not contain oil. But on the other hand, if the olives ripen too long the oil volume continues to increase, but also the acidity. This has therefore a negative influence on the quality of the olive oil.
For many people it is difficult to see when is the right time to start harvesting the olives. We prefer to check if the olive factory opens in that same area. It will not open until the harvest can start. This may be different for each area, because not all the olives are ripe for harvest at the same time. In the mountainous areas of Crete, where it is colder, the harvest starts later. In the coastal area the harvest starts at the beginning of November and in the mountains, they might have to wait until the end of December.