Iced tea (or ice tea is a form of cold tea. Though it is usually served in a glass with ice, it can refer to any tea that has been chilled or cooled. It may be sweetened with sugar, syrup and/or apple slices. Iced tea is also a popular packaged drink which can be mixed with flavored syrup and with multiple common flavors including lemon, raspberry, lime, passion fruit, peach, orange, strawberry, and cherry.
While most iced teas get their flavor from tea leaves (Camellia sinensis), herbal teas are sometimes served cold and referred to as iced tea. Iced tea is sometimes made by a particularly long steeping of tea leaves at a lower temperature (one hour in the sun versus five minutes at 80 to 100 °C (176 to 212 °F), which is known as sun tea.
In the United States, iced tea makes up about 85% of all tea consumed and is very popular as an alternative to carbonated soft drinks, especially as a characteristic beverage of the American South. It is ubiquitous in grocery stores, convenience stores, restaurants, vending machines, and soda fountains. It may be freshly made on-premises or available in bottles and cans and at self-serve soda fountains.
Info and image from Wikipedia