Black tea is a type of tea that is fully oxidized, giving it a dark color and rich flavor. It is made from the leaves of the Camellia sinensis plant, which are harvested, withered, rolled, and then allowed to oxidize before being dried. This process enhances the tea's bold taste and aroma. Black tea is popular worldwide and is often enjoyed plain or with milk and sugar. It contains caffeine, which can provide a mild energy boost. Additionally, black tea is rich in antioxidants, which may offer various health benefits, including improved heart health and better digestion.