What do edible water bottles taste like?

Spherification is done using neutrally flavored alginate. They're thicker than normal water because alginate is thick. They're normally flavored and used in "molecular gastronomy" for many dishes, including the "olive" by Ferran Adria at el Bulli. pH affects the amount needed. read more

His latest idea, the edible "Ooho" water bottle, is simpler on the surface but goes after one of the world's most troubling environmental threats: plastic pollution (a problem much more serious than lost luggage). read more

Edible water bottles—at least the DIY versions—taste nasty. The sodium-alginate-laced water is too thick to feel like a proper liquid, and the outer membrane is unpleasantly slimy. As for the flavor, it was slightly chalky—one taster compared it to ground-up Tums. read more