Wednesday, March 10, 2010

...and this is why we test...

Ever make a huge batch of cold process soap and find that all of your hard work turns into a clump before you can even pour? Or better yet, you put on a circus act to perform a quadruple swirl pattern only to find out that the entire thing went brown over night? Yup, that's the fragrance, and those results are exactly what we are looking out for in new scents before they hit the shelves so that you don't have to go through the frustration of bad behaving soap.



I've written a post about testing before, but I couldn't resist putting up a photo of these twenty new fragrances that were tested this afternoon. Look at the amazing changes made just by adding scent! It turned out that anything with peach in it separated from the oils and pooled on top. Bamboo, cherry blossom and root beer float all seized horribly (see the one's with the clumpy texture). Vanilla, candied apple, leaf, blueberry, and cotton candy all discolored. In fact, many synthetic fragrances have vanilla in the blend to add a warm note, which means the soap will brown. In my opinion, it's best just to embrace the browning and go with the natural quality of the scent as a theme when coloring your soap. There really isn't much of a fix for browning fragrances in cold process, but you can always leave part of the soap unscented to make a brown and white swirl.

Now I'm super curious as to what these will look like as the weeks go by!

6 comments:

  1. Did you add colorant to all or some of these tests? Or is the color from the FO used?

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  2. Great post - good stuff.

    T.A. - In theory, they shouldn't be adding any colorant at all to the tests to make sure they know exactly how the product reacts (discoloration etc...)

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  3. The crazy part is that any change in color is purely a result of the fragrance oil, which is exactly why we are testing. Pretty fun :-)

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  4. Testing....it's always a science experment! Been there and done that far more times than I can count! Good post.

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  5. is that really a red colour? I'm referring to the one 2nd from the right in the bottom row...that would be cool if it was. :)

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  6. I thought the same thing about the red-- how cool! But this red won't last. It has already deepened into a chocolate brown. Gotta love the chemistry of soap making!

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