Does Kombucha necessarily have to have tea in it?
No it doesn't need tea. I have made it in simple sugar water and it works well (though it doesn't have the same taste). A study has been made that showed caffeine content doesn't even decrease during the kombucha process. It doesn't use it. This myth and more myths about kombucha are analysed at http://www.phoenixhelix.com/2013/03/2...