I have read a few threads where people have had problems with either transporting their HGH or their refrigerator going out and worrying about it getting warm and going bad.
My suggestion and what I do, I have a medium size cool pack (freezer pack) that I keep it wrapped in. I use a large zip lock bag and wrap my HGH in it in the refrigerator so if the power went out or anything it would keep it cool probably for days at a below room temp. I also use it for traveling. I use one from the freezer also that I wrap it in when traveling to keep it cool, not frozen and it seems to work great. Cheap insurance.