If you must make the drink ahead of time for work (I do), add the cayenne pepper per drink. That is, don't put the cayenne pepper in the pre-mixed drink, but just add it per glass. i found that when I made the whole drink ahead of time, the cayenne pepper taste became overwhelming. So the last time around, I brought a little packet of cayenne pepper to work and added it to the drink, glass by glass. It made a HUGE difference in taste.