Sounds like you are all sorted, but just FYI, I have 3 100ml bottles I keep in my fridge. The oldest has been there almost a year and tastes just as good as out of the mail to me. Generally, they (whoever they are) say that storing juice in the fridge is a bad idea, but at least with Boba's, doesn't seem to matter one bit. All of which is my way of saying that I think this juice is really quite stable -- retains its flavor no matter what you do to it.
S.