Dop, standing for Pdo, protected designation of origin, is a quality label which is given to those food products whose peculiar characteristics depend basically or exclusively on the land where they are produced. The geographical environment includes both natural factors (climate, environmental characteristics) and human factors (production techniques passed on from one generation to the next, artisan methods, know-how) which when combined together, allow to obtain a unique product which can be found only in that particular area. Besides, to be registered as Dop, products must be produced, transformed and processed in a well defined geographical area. The producers of DOPs follow very rigid rules established by the production specifications, and the respect for these rules is guaranteed by the control bodies.