Cactus Exatract from tea ,help

[Magicman]

Hi guys , i have the remnants of what turned out to be a rather controversial Bridgesii in one of my other posts. I made a tea out of it and took the tea witha friend .Now i have 500 ml of tea left , and that will be enough for a very good journey . But i dont know when i'll be able to do that , and i dont know how long this will keep , and also i was rather hefty with the vinager in the making of the tea so it is utterly putris to drink

So i was wondering if i can do an extract on the cactus-water-vinegar solution i have ,and if so then how would you recommend i go about it?

thanx guys