Mozzarella cheese is a soft, white cheese that originated in Italy. It is traditionally made from the milk of water buffalo, although cow's milk is commonly used today. Mozzarella has a mild flavor and a stretchy texture, making it popular for various dishes, especially pizza and salads. This cheese is often sold in balls or as a block and can be found in both fresh and aged varieties. Fresh mozzarella is typically stored in a brine solution to maintain its moisture, while aged mozzarella has a firmer texture and stronger flavor. It is a key ingredient in many Italian recipes.