I have made plenty of soap using pomace, with nary a problem UNTIL I bought a 20 litre box of pomace a few months ago from Costco. And - Holy Moley!! My first soap using that pomace oil went to a thick trace instantly. I am very conservative with my stick blender, and had only done a couple 2-3 second bursts when that batter moved to pudding, and I barely had time to slam it into my loaf mold. I tried again, with a lower percentage of pomace. Same result. One last try with 20% pomace and I managed to do a swirl, but I packed that box up and took it back. That’s my evidence-based experience that one pomace is not like the others! .