solid conditioner bars, Kenzie asks: I was wondering what the melting point of the finished bars are. I am concerned about shipping in the summer. Also, does this recipe need to be put into single molds or would I be able to make a large batch in a soap loaf and cut it after it hardens?
Melting point is such an interesting concept, and it's something I haven't addressed as often as I should on this blog.
The melting point of Incroquat BTMS-50 is around 60˚C. The melting point of Incroquat CR, if you use it, is about the same. Cetyl alcohol melts at 49˚C, while most butters melt at 38˚C or higher. (Don't use coconut oil or babassu as they melt around 24˚C, which is awesome on you skin, but not so awesome if they melt in transit.)
It's not as easy as saying that if you keep this at 38˚C or higher, it won't melt as there are so many factors that go into the melting point of a product. But what I can tell you is that I have been using conditioner bars for almost nine years. I have taken them camping many times, and they generally live in my bath tub or in my workshop, both of which can get very warm. And I have never had a conditioner bar melt on me. My workshop can get really hot, well over 35˚C, and no melting.
I don't want to guarantee that you won't see meltage, but I can tell you that I haven't. Just stick with higher melting point butters, if you include them at all, and you should be okay.
Anyone have any experience with this they'd like to share?
Melting points of butters
How do we heat proof an emulsified scrub?
Let us know how this turns out!