Blackberries and lemons are a classic flavor combination, and they brew perfectly into a fresh, delicious tea. Use less sugar for a healthier brew that's still bright and sweet.
In a large, heat-proof container, combine 1 ½ cups blackberries and sugar. Muddle until thoroughly smushed (yes, that’s a technical expression). Add thyme and baking soda, then 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 six cups of cold water, Meyer lemon juice, and the tea, stirring with a long-handled wooden spoon to combine.
Add a blackberry or two to every glass before serving.