The most important thing in making the perfect tea, whether iced or hot, is using a high-quality tea. But that doesn’t mean you should go for the green-raspberry-mango mumbo jumbo teas you like in the winter. "Just because a tea is more expensive doesn’t mean it will make the best iced tea," says DeCandia. "High-end, specialty and delicate teas are meant to be consumed hot, which allows you to savor the special aspects and flavors of the tea leaves." So stick with your basic black or green tea for iced tea — and save the expensive blended teas for when the weather gets cold. However, that doesn’t mean that you shouldn’t pick a tea that packs a big flavor, like a rooibos tea. Because heat intensifies flavor, a tea that’s brewed normally and chilled will make for a refreshing iced tea.