Sharp cheese is a term used to describe a type of cheese that has a strong, pungent flavor. CHEDDAR is a type of sharp cheese that is made from cow's milk and is aged for several months. Romano is another type of sharp cheese that is made from sheep's milk and is usually aged for at least five months. Bleu cheese is a type of sharp cheese that is made from cow's milk and is aged for several months, during which it develops a blue-green mold.