This is really interesting. I have been making my own "instant cola" with several large dashes of angostura bitters and a can of seltzer in a pint glass. The liquid should be very pink/orange. and, if I want sweetness a drop of liquid sucralose sweetner is all I need, just sweet enough for me without aftertaste. This mix scratches my cola itch very well and can be made in about 20 seconds.