Ewwwwww.
I also use a Luxe, love it, holds enough stuff and H2O for day-long adventures. It's never bothered me. Except for that time when I found a month old bag of grapes, but that was in the kitchen, not on the bike
Yeah, it was gross. I never have understood why he likes/liked bottles on the MTB.
Another vote for the Luxe. Love mine! I really want an Osprey Verve 10 too.