some emulsions are likely more freeze-stable than others.
I believe that Al from Murakami told me that SP1400 is freeze-stable...
The Saati guys told me that their emulsions were fine to be shipped in freezing conditions... so we actually tested it and put a quart of Saati PHU in the freezer over night, and while it didn't freeze solid, it defintely thickened up... after it warmed back to room temperature, no problems at all.. exposed just like a non-frozen batch.