The brown foam is expected and normal. That means its working. I've never just left I EJ tea laying around for days either, so I don't know how long it's good for. Just use it a day after you make it.
Wow some of the shit I read around here is mind boggling. Food grade hydrogen peroxide cures AIDS and cancer? Wow. This has got to be trolling at its finest.
I think music is a tremendous form of art. This is the Crüd Güns, first show. If you like metal, check these guys out!
http://www.youtube.com/watch?v=DaAh3zoKsC8