High Quality Content by WIKIPEDIA articles! Xynotyri is an unpasteurized whey cheese from Greece made from sheep`s milk or goats milk, with a hard and flaky consistency, a pungent aroma and a yogurt-like sweet and sour taste. "Xynotyri" means "sour cheese" in Greek. Traditionally the cheese is drained and cured in reed baskets or allowed to mature in bags made of animal skin. Cow milk is not utilized in the production.