What goes better with iced tea than peaches? This classic combination is a great use of fresh peaches that are just starting to get a little mushy.
Pit, peel, and slice three of the peaches, then purée them. Push the pulp through a strainer. Set aside.
Place the tea, baking soda, and sugar in a heatproof container and add six cups boiling water. Let the tea steep six minutes, then strain and discard the tea leaves or remove tea bags.
Fill a pitcher partway with ice, then pour in strained purée and the remaining six cups of water. Pour in tea, stirring with a long-handled wooden spoon to combine.
Slice the remaining peach and float in glasses filled partway with ice. Pour tea and serve.