Back to the HEED, I did a ride the end of May, and HEED was the liquid at the rest stops. Having finished the water in my Camelback and bottle, I filled both up with the HEED. I'm good at cleaning my stuff, but it took a good 3 weeks before I couldn't taste HEED out of my bladder! It just soaked into the bite valve or something, but no amount of washing would make it go away! Water only in there now, for me.