Just joined yesterday. This is my 'maiden question' so please don't expect too much. In a novel I am reading a character says, "I could fix you some herbal tisane." Is this redundant? And to be picky, does one 'fix' tea? ucci

In a novel I am reading a character says,

I could fix you some herbal tisane.

Is this redundant? (And to be picky, does one 'fix' tea?)