Graviera

Graviera is one of the most popular cheeses in Crete. It is a hard cheese wtih a light yellow color, and has a slightly sweet and nutty taste. The Cretan version (there is also a graviera made in Naxos) is made with sheep milk, or sheep milk with a small amount of goat milk. It is aged at least 5 months before coming to market. Salt content cannot be greater than 2%.

Wikipedia