[custom_adv] The Japanese tea ceremony, also called the Way of Tea, is a Japanese cultural activity involving the ceremonial preparation and presentation of matcha, powdered green tea. [custom_adv] Tea production is one of the main sources of foreign exchange for Sri Lanka (formerly called Ceylon), and accounts for 2% of GDP, contributing over US $1.5 billion in 2013 to the economy of Sri Lanka. [custom_adv] Yerba mate is used to make a tea beverage known as mate in Spanish and Portuguese. But the drink is called other names, such as chimarrão in Portuguese and tererê/tereré when served cold. In English, the tea is frequently just called yerba mate. [custom_adv] Since the eighteenth century, the United Kingdom has been one of the world's greatest tea consumers, with an average annual per capita tea supply of 1.9 kg (4.18 lbs). The British Empire was instrumental in spreading tea from China to India; British interests controlled tea production in the subcontinent. [custom_adv] Mint tea is central to social life in the Maghreb. The serving can take a ceremonial form, especially when prepared for a guest. The tea is traditionally made by the head male in the family and offered to guests as a sign of hospitality. [custom_adv] Masala chai is a flavoured tea beverage made by brewing black tea with a mixture of aromatic spices and herbs. Originating in the Indian subcontinent, the beverage has gained worldwide popularity, becoming a feature in many coffee and tea houses. [custom_adv] Black tea is a type of tea that is more oxidized than oolong, green, and white teas. Black tea is generally stronger in flavour than the less oxidized teas. All four types are made from leaves of the shrub (or small tree) Camellia sinensis.