i am far, far, far from any knowledge of brewing & crashing gear but are you sure that is an accurate statement. i mean no disrespect just never heard that before. i thought i had heard that pharm grade test will crash in extreme cold? again, just trying to gain some education.
I know as little as you also but I have a few bottles of Watson in an area of my home that gets a little cold in the winter time (50's). The cyp crashes priddy easy. A little heat and it is good to go.