Vladi, Boyan, Violeta-great posts!  Karolinka, you can also find Harmonica at Picadilly.  Note that even the sugar in Harmonica boza is from organic beets.  This is important because, since discovering that aspartame ferments, all other boza has been sweetened with it, and yes, aspartame boza IS disgusting!  P.S. Boiling or pasteurizing milk or cream kills essential enzymes that allow the body to properly absorb and utilize calcium.  Ultra-paseurization that does not even require refrigeration releases free glutamate and equates to drinking MSG!  Get to know your dairy farmer and stick to raw "selsko" milk from properly pastured cows.  Na zdrave!