The invention relates to a single serve capsule (1) for producing tea, comprising a capsule body (2) with a capsule base (3) and a filling side (4). A cavity (100) for accommodating a powdered or liquid tea granulate (101) is formed between the capsule base (3) and the filling side (4), a filter element (7) is arranged between the tea granulate and the capsule base, and an acid is added to the cavity.
