Now for the hardness, which was my purpose for using the wax in soap (and for wax/hardness testing purposes, I left out palm oil for both but used 10% cocoa butter in each as well). I used different amounts of wax in each batch. I make small batches and usually use 28 oz. of oils...so for the apple blossom & lavender batch, I used 1/2 teaspoon candelilla wax, and for the sweet orange spearmint batch, I used 1/4 teaspoon of wax.
apple blossom & lavender
sweet orange spearmint
The apple blossom & lavender bars are significantly harder than the sweet orange spearmint ones. I "knocked" on a bar with my knuckle and it was loud, lol...and didn't leave a dent. I had faster trace with this batch too. I knocked on a bar of sweet orange spearmint and my knuckle did leave a little dent in it, and it also felt a little "softer" when I was using it in the shower. I don't think 1/4 teaspoon wax made much of a difference, really. I did have more time working with this batch, so didn't get quick trace.
My final thoughts on candelilla wax:
- I think it's perfectly fine to use in soap
- I'll stick with using it at 1/2 teaspoon because it does make the soap noticeably harder
- I just need to be prepared to work fast!