I have seen some videos in YouTube about a piece of an Ivory soap being microwaved and that piece expanded to a puff of whiteness. I am not sure how that happened so I and my daughter tried it with a very small piece because I don’t want the whole thing occupying my microwave. I set the microwave for 30 seconds only. And voila!
Yes! It does expand into a thing of puffy whiteness. We poked it. We touched it and tried to mould it again but it became flaky but still sudsy and worked like a soap. Amazing! A piece of Ivory can turn into a bigger piece of weird puff of whiteness that you can still use. Saves you money big time!