What is a key ingredient in making Iced Tea after the tea bag has steeped?

The key ingredient in making Iced Tea after the tea bag has steeped is cold water. Once the tea has steeped, it is crucial to dilute the hot tea with cold water to lower the temperature and achieve the desired refreshing quality of iced tea. This helps in balancing the flavors and ensures that the tea is not overly strong or concentrated.

In contrast, while ice is commonly used to chill the tea, it is not the primary ingredient that contributes to the preparation process after steeping. Steam and boiled water are not appropriate for this stage of making iced tea, as they would further heat the mixture rather than cool it down, which goes against the primary goal of serving iced tea. Therefore, the addition of cold water after steeping is essential for properly preparing iced tea.