Rinsed it hot twice in case it was dank like the 80’s one people complained about. The first few steeps tasted old and vanilla-y. I like sour foods generally, so maybe I am not the best judge of unpleasant sour tastes, because my threshold is likely higher than that of others due to the sheer quantity of sour fermented foods and drinks I consume. Is this a little sour? A little? Dunno. But it is surely nothing compared to a sour ale.. Not much energy in this tea, though. Will need to leaf it harder next time.