by Matilda L » Mon Jun 27, 2016 5:01 am
Makes me think of a Tanith Lee novel, Drinking Sapphire Wine.
When I was a student, more years ago than I care to mention, there was a thing called Blue Moose, which was sparkling apple cider with blue colouring in it. I have no idea these years later what was used to colour it, but there was a slightly chemical tang to the drink. One would hope that natural, grape-derived colouring agents would avoid this artificial aftertaste. I had no idea indigo was edible (drinkable); who knew?