Monday, June 3, 2013

Microwaving Ivory soap

Yup.  I was shocked too when I saw the results.  But it really works.  We tried making this puffy soap with a friend.  Chuck didn't seem too excited by the transformation, but his friend loved it.

I just took a bar of Ivory soap, cut it into quarters, placed the pieces in a bowl, and microwaved for 2 minutes.  (Note: It's got to be Ivory soap.)

Why did it expand?  Well, unlike other brands of soap, Ivory soap has a lot of air inside. As you heat the soap, the water vaporizes and the air expands, causing the soap to poof out.  (See Steve Spangler for more information.)

I had to wait a couple of moments before I could touch it because parts were pretty hot.  The texture reminded me of crumbly cotton candy.  As we played with the soap, it slowly broke down into a fine powder.

You can still use it as soap... but I'm going to use the soap powder for another reason....homemade laundry detergent!


  1. We haven't tried this yet, it's so weird. Summer activity I think :)

  2. Can't wait to try it! One of the many many reasons I love having kids---an excuse to try all these science-y experiments!

  3. can't wait to try it - looks so cool

  4. Have fun! It's so weird to see it expand. I kinda felt like a mad scientist!

  5. Because of posts like this I surf the internet and when I found you, the time I felt I was wasting, just turned my thoughts around and now I am thinking I invested my time in something really interesting.
    Miracle II Soap


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