Black tea is a type of tea that is more oxidized than green, oolong, and white teas. It is made from the leaves of the Camellia sinensis plant, which are withered, rolled, fermented, and dried. The oxidation process gives black tea its characteristic dark color, robust flavor, and higher caffeine content compared to other types of tea. Black tea is produced in many regions around the world, including China, India, Sri Lanka, and Africa. Each region's black teas have distinct flavors and characteristics influenced by factors such as climate, soil, and processing techniques. Common varieties of black tea include Assam, Darjeeling, Ceylon, Earl Grey, English Breakfast, and Keemun. Assam tea, grown in India, is known for its malty flavor, while Darjeeling tea, also from India, has a lighter, more floral taste. Ceylon tea from Sri Lanka often has a bright, citrusy flavor, and Keemun tea from China is prized for its wine-like sweetness. Black tea can be enjoyed on its own or with milk, sugar, lemon, or other flavorings, depending on personal preference. It is often brewed with boiling water and steeped for several minutes to extract its full flavor. Black tea is popular worldwide and is commonly consumed both hot and iced. Additionally, it is known for its potential health benefits, including antioxidants and polyphenols that may help improve heart health and boost immunity.