The high content of calcium carbonate and the high salinity of the soil, the extreme climatic conditions, especially the high content of calcium carbonate and the high salinity of the soil, the extreme climatic conditions, especially the cold winter and the hot summer and the scarce rain, have a marked influence in the uses and agricultural crops of the area and, to a large extent, determine the quality and properties of the oil that is obtained.The characteristics of stability, bitterness and itching are mainly due to cornicabra and picual varieties. The specificity of the product is also due to the presence of other varieties, among which we can highlight the local local endemic washing, as well as other testimonial varieties such as chamomile and arbequina. This specific mix of varieties is due to the fact that this geographical area is the confluence zone of the region of principal are the cornicabra, in Ciudad Real and Toledo, and the picual, in Córdoba and Jaen.