This comes from MichelleB's Shortening and Shea Sudsy Soap Recipe. I had originally posted in the recipes but no one answered so hoping some one can help me. Originally Posted by michelleB I Superfat: I did a 4.5% superfat on this recipe because I used full Goat Milk as the flluid and didn't want the extra fat from the milk to interfere with my suds negatively. This way, I got a really creamy lather with a lot of bigger bubbles too, instead of just the creamy by itself. Hope that makes sense! When you say you did a 4.5% superfat what does this mean? Not sure if I read this right but do you have to freeze the goat's milk? If so, why?