When people talk of tea in general, most often they are referring to black tea. High tea, cream tea, iced tea or afternoon tea. Black tea typically has more astringency and bitterness than green tea, but if brewed correctly it should be smooth and flavourful. A brewed black tea can range in colour from copper to brown to dark red, and its flavour profile can range from bitter to sweet, depending on how long it was oxidized and in which way heat processed. Three of the largest producers of black tea today are India, Sri Lanka and Africa.