The difference between Ceylon black tea and Earl Gray black tea lies in the origin and taste.

Ceylon black tea is a black tea from Sri Lanka (formerly known as Ceylon) and is famous for its unique aroma and mellow taste. It usually has a soft fruity and floral aroma and a mellow taste, suitable for drinking alone or with milk and sugar. Earl Gray black tea is a kind of black tea flavored with citrus fruit peels. It was first introduced by the British Earl Charles Grey. It has a bright citrus aroma and a refreshing taste, perfect for drinking alone or with lemon.