The key to making something look good, use a large aperture. But that aside, I would not recommend that people try this. Its a fermented drink using tea leaves as a base, and it tastes oddly like beer but without the alcohol. Unless you are into that taste... but in that case, then get some beer!
Side note: Medical studies are show that kombucha don't really have a particular health benefit, so I wouldn't trust the marketing material.
