The success in the diffusion of pork is essentially due to the fact that it is very simple to preserve: pork can in fact be found in cured meats, pancetta, sausages and also other types of cuts. In the history of human nutrition, this animal was one of the first to be domesticated and, moreover, it is characterized by a very interesting peculiarity, namely, the possibility of exploiting every single part of it, so much so that pork cannot be throw away anything, starting from the bristles used for brushes and brushes, through to the feet and blood, the latter also perfect for preparing the famous cracklings.