Black tea is a popular type of tea known for its strong flavor and dark color. It is made from the leaves of the Camellia sinensis plant, which undergoes full oxidation during processing. Common varieties include Assam, known for its malty flavor; Darjeeling, often referred to as the "champagne of teas" for its delicate taste; and Ceylon, which has a bright and citrusy profile. Each variety of black tea has unique characteristics influenced by its growing region and processing methods. For instance, Keemun from China is known for its rich aroma and slight smokiness, while Earl Grey is flavored with bergamot oil, adding a distinctive citrus note. These diverse varieties cater to different palates and preferences.