It is very difficult to answer this question. The production costs are extremely variable and depend on a multiplicity of factors: soil morphology which determines diversified costs in the agronomic management of olive groves, adoption of the training system of the plants, uneven productivity of the cultivars also in relation to the different reference areas, necessity whether or not to resort to water supply, transformation costs charged by diversified milling structures, type and quality of materials used for packaging, etc. By way of example, it is possible to state that a good Tuscan extra virgin olive oil should not be released at a price below 14,00 / 15,00 euro per liter.