On the old map, 0.1l of tea would restore 15% of stamina, that tea would have been q10 if I understand that correctly.
However here, when I drink 0.1l of Q34 tea, it still only restores 15%.
If Tea doesn't restore more stamina with higher quality then there's no real point in making it, since q55 water restores about 12% stamina and you can carry up to 2.0l of it in the same space as 1.0l of tea.