hello Myke,
Just noticed this post and thought I had answered it. Sorry.
I was talking to Phil Stone about this recently, and he seemed to think that the pheros could withstand a lot more heat than you would think in a fresh untouched bottled form, but since the pheros do get further broken down by bacteria and heat accelerates that action, you still have to figure that if bacteria gets into a bottle of Primal from a lot of use and is left at a high temp for several months that could be bad. Alc containing products like NPA and Edge are protected from bacteria, but if the tops aren\'t on tight, evaporation is a problem. Cold shouldn\'t be a prblem.
Regards,
Bruce
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