The other day I thought about this tea again and it dawned on me that it might make a great cold brew. Root beer is usually drunk cold, afterall.
It came out pretty well. The sarsaparilla flavor was nice, although the cold brewing brought out a bit more vegetal-ness from the oolong than I would have preferred. I may drink the rest of this up via cold brew this summer; it might also make a decent tea soda.