Queso blanco (Spanish pronunciation: [ˈkeso ˈβlaŋko]), with similar cheeses including queso fresco (pronounced: [ˈkeso ˈfɾesko]), is a creamy, soft, and mild unaged white cheese, commonly used in the Iberian Peninsula, several Latin American countries including Mexico, and many parts of the United States. The name queso blanco is Spanish for "white cheese", but similar cheeses are used and known throughout the world. It is used to make cheesecake in some parts of the world, such as the United States and France.
It is sometimes made by pressing the whey from cottage cheese. More often it is made by heating whole fresh milk to near-boiling, adding an acidifying agent such as vinegar, stirring until curds form, then draining the curds in cheesecloth for three to five hours. If it is pressed, and more water is removed, it becomes known as queso seco.
It is similar to (if slightly more acidic than) pot cheese and farmer cheese. It has been compared to quark (or tvorog) from Central and Eastern Europe and to Indian paneer. Queso blanco is considered one of the easier cheeses to make, as it requires no careful handling and does not call for rennet or a bacterial culture.
Queso blanco is traditionally made from cow's milk, whereas queso fresco may be made from a combination of cow's and goat's milk. They may be eaten straight or mixed in with dishes. Some versions of these cheeses, such as Queso Oaxaca, melt well when heated, but most only soften. They are also known as "bag cheeses", as the curds are normally hung in a bag of cheesecloth to drain.