Oh, I see they also mentioned that they brew Kombucha, which I've been brewing too. I brew it till it gets pretty sour (cos of Sugar content) and like to experiment. For instance, I've used Barley Malt syrup in addition to Sugar for fermentation (to add extra benefits of Barley Malt enzymes), and it tastes pretty nice afterwards. I also like to add SSKI , ascorbic acid, MSM and malic acid for the 2nd fermentation.