Why does the liquid wool wash separate into layers?
Each oil used in soapmaking has it’s own unique properties. Some of them, when saponified, form water-soluble soaps. Some do not. The white creamy part that rises to the top consists of non-water-soluble soaps and the clear-ish stuff that sinks to the bottom is the water soluble soap. The lanolin, if the wool wash is let to sit undisturbed for a while, will form a third orange-ish layer at the very top.