Iced tea can become cloudy for a variety of reasons. Here are some common causes of cloudy iced tea and how to prevent it:

1. Steeping time: If your iced tea becomes cloudy after steeping, it could be due to over-steeping. Tea leaves contain tannins, which are compounds that can give tea a bitter taste if steeped for too long. Over-steeping can also cause the tea to release excess tannins, which can cause the tea to become cloudy. To prevent this, be sure to follow the recommended steeping time for your specific type of tea.
2. Water quality: The quality of the water you use to brew your iced tea can also affect its clarity. If your water is high in minerals or impurities, it can cause the tea to become cloudy. To prevent this, be sure to use filtered or purified water when brewing your iced tea.
3. Tea variety: Some types of tea are more prone to cloudiness than others. For example, black tea and oolong tea are more likely to become cloudy due to their higher tannin content. Green and white teas, on the other hand, are less likely to become cloudy due to their lower tannin content. If you prefer a clear iced tea, you may want to try using a green or white tea instead of a black or oolong tea.
4. Brewing temperature: The temperature of the water used to brew your iced tea can also affect its clarity. If the water is too hot, it can cause the tea to release excess tannins and become cloudy. To prevent this, be sure to follow the recommended brewing temperature for your specific type of tea.

In conclusion, iced tea can become cloudy for a variety of reasons, including over-steeping, water quality, tea variety, and brewing temperature. To prevent cloudy iced tea, be sure to follow the recommended steeping time and brewing temperature for your specific type of tea, and use filtered or purified water to brew your iced tea.