This cheese is the most popular and widely consumed of the Greek cheeses and has a worldwide reputation. It has been produced in Parnassus area since ancient times (since the time of Homer). It is made from sheep’s milk or from sheep’s and goat's milk using traditional technology. The milk used for the cheese comes from sheep and goat breeds reared traditionally in the defined area. The animals are fully adapted and their diet is based on the flora of the Parnassus.