B2 any basic substance that is used in or produced by a reaction involving changes to atoms or molecules: The government has pledged to reduce the amount of chemicals used in food production. Each year, factories release millions of tons of toxic (= poisonous) chemicals into the atmosphere. More examples.
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 both be eaten straight or mixed in with various dishes. Some versions of these cheeses, such as Queso Oaxaca, melt well when heated, but most only soften.
Queso de Papa. A cheese common in the Caribbean that is very similar to a Colby cheese. Orange in color, this cheese has a firm, moist texture that provides a smooth tasting mild to tangy flavor for a variety of baked or fresh foods. It is a cheese that is often used as an ingredient in food dishes or simply served for snacks and appetizers.