I travel too and I do this exact same thing. I don't heat or boil the little gh bottle and I never had a problem in not doing so. I travel for a week to two weeks at a time by airplane so I meter out my juice shots and put them into the gh vial. I then hide my gh vial in an old metal "AIFM" spray bottle, with the dipstick tube cut off. I can fit like 3 vials in this metal AIFM bottle. I then put this AIFM bottle into checked luggage that goes into the belly of the plane. Go ahead and x-ray it, you cant see whats inside. Needles are legal to posess in FLorida so I'm not worried about having a bunch of needles in my checked luggage when I leave from Florida. THey don't go thru your suitcase wherever you land so again, who cares how many needles you have in there. Just go fill your gh vials with whatever you need to and don't worry about any cloudyniess. I don't worry and I never ever had a problem.