Testing Fragrances in Soap

Testing Fragrances in Soap
Although many suppliers have tested the fragrances and essential oils they carry in soap, each recipe plus other factors, such as temperature, humidity, etc., are different.  Therefore, you should always test the fragrances in your own recipe. If you have a number of fragrances to test, you can make a batch of soap, and mix each fragrance in a different cup or mold section.  Both CP and MP soapmakers should test fragrances.
How does your fragrance react during soap making?
  • Trace acceleration
  • Ricing
  • Seizing

How does your fragrance react after soap making?

  • Discoloration
  • Oozing
  • Staying power
 Be sure to label or mark your cups or mold compartments, especially if you are testing scents that are similar.  Record your findings in a notebook so you review any important notes for future use.

Once you have tested your fragrances, you can then decide whether or not you will use them. Just because a fragrance is problematic, doesn’t necessarily mean you have to avoid a fragrance you love. There are ways to prevent problems just as there are ways to save a batch gone awry.

The photo above shows a fragrance test of 10 new floral scents. The center soap is the control with no fragrance added. The other soaps are numbered so I could keep track of them. Some turned yellow and others turned brown. Since these are florals, I chose not to use the fragrances in my products.