This could be a connection issue, but on playing this presently it sounds as if he starts to say 'la bonne tisane' but switches to saying 'une bonne tisane'. My wife (French) hears the same hint of starting with an "l" that I do. I have had similar slight glitches previously that were not repeated on subsequent playing, but this has persisted today. (I have just seen this has been reported previously but was not detected on checking. It is definitely there today)