You could experiment making your own since the storebought seems to not be recommened(I know how yummy good it is too). Buy ginseng tea bags, and raw unheated honey(the least likely to cause blood Sugar spikes), and brew up some of your own and refridgerate it. You'd be suprised how yummy your own stuff can taste. Personally white jasmine tea refridgerated is the yummiest drink there is.