Refrigeration shouldn't by itself cause a sauce to seperate*. The greatest culprit causing seperation that I've found is to leave them alone too long. Making extra efforts now to make sure that doesn't happen ;-) My entire sauce collection sits seperated and before showing it off, I shake each bottle to restore them. One of the reasons a fitment (that little thingie we all pull off) is used is to help the sauce mix as it is shaken to get it to come out of the fitment. This too helps combat seperation. -Jim Campbell Mild to Wild Pepper & Herb Co *If I wanted to postulate an official sounding explanation whereby refriegeration might cause them to seperate, I'd talk about micro-fine air bubbles attaching to pieces of the solids insolution. At room temperature, the air bubbles have expanded enough to maintain bouyancy (like a hot air ballon) but under colder emps, the larger pieces fall out of suspension. Science grant anyone? :-)