Flavors are substances that have an aromatic odor. Most cakes and cookies can be improved or enhanced with flavors and fragrances. These flavors and fragrances are called flavoring agents. Flavors can be divided into natural and artificial flavors depending on their source. Natural flavors include plant and animal flavors. Plant flavors are mainly used in food production. Artificial flavors are compounds made from petrochemical products, coal tar products and other raw materials synthesized by reaction. Flavors are compounded from several or dozens of fragrances mixed with diluents. Strictly speaking, flavoring generally refers to the raw materials used as ingredients for flavoring and is rarely used directly in food. Flavors are important ingredients used directly to add flavor to food.