What percentage of sorbitol do you use @cmzaha? I see on the modern Soapmaking site where they did the lather experiment that they used 5%. Was that by oils weight or batch weight? And do you mix with liquid first and add to lye like with sugar? TY!I always buy mine from Amazon
Check this out. Sorbitol tested better than powdered or cane sugar according to this experiment.Shunt and cmzaha, do you two notice a difference in lather boosting capabilities comparing sorbitol vs powdered sugar?
And second what Jersey said.
Yes, it’s the kind you make icing with...powder consistency. It’s also called confectioners sugar in the US. Not sure of the official name in the UK though.Does anybody know what powdered sugar is called in the UK? Is it icing sugar? I find the term"powdered" confusing because both granulated and castor sugar are powdered...
How much sorbitol would normally be used?Sugar, glycerin, and sorbitol are a few of the solvents used to make transparent soap. Solvents prevent the crystalline structure of the soap from developing as it normally would if no solvent was used. The lack of a regular structure of crystals allows light to pass through the soap more easily.
As the % of a solvent increases in the soap, it will cause the soap to become more rubbery/pliable and less firm/hard.
These solvents are also humectants -- they want to absorb water from the air -- so the soap gains water, starts to sweat, and/or becomes softer and even more rubbery.
The sweet spot where a particular solvent doesn't greatly affect the qualities of the soap will vary depending on the solvent. That is probably why 5% sugar works okay in your recipe, but 5% sorbitol does not.