"My husband and I tried multiple times with no luck. We tried everything from pouring differently to laying the ice in different ways. The top layer (Diet Sprite) did, in fact, separate from the rest of the drink, but we definitely did NOT see the wonderful blue and red that I was hoping for. The project ended leaving me disappointed with a ton of a fruit punch concoction left to drink."
I can feel Sarah's disappointment through the email. I know I would have been highly disappointed. I've done some looking around (and some far reaches back to my college chemistry classes) and I have a few ideas of how to help this out.
The separation of layers comes from the density of each drink, and the sugar content of the drinks affects the densities. You have to make sure to have good variations in your sugar content to get this to work just right. The pin Sarah used called for fruit punch and blue gatorade for two of the layers, but a little more specific information is needed. If your fruit punch isn't the thick fruit punch, it's not going to work so well. The gatorade and the punch need to differ in densities (or thicknesses if you want to think of it that way). I looked up some other recipes and found a more specific ingredient list for you:
- Sobe Pina Colada for the white
- Gatorade Fruit Punch for the red
- G2 Blueberry-Pomegranate for the blue.
And here's the process I'm reading in many posts:
- Fill the glass all the way full with ice (not just the 1/3) and pour in your thickest drink first (using the above ingredient list, that'd be the Pina Colada Sobe).
- Slowly, pour in the next drink through the ice, and follow up with the last drink (again slowly!).
- Cran-Apple Ocean Spray Juice
- Pina Colada Sobe
- G2 Blueberry Pomegranate