That is correct Greg. Only castor has that particular fatty acid. It does contribute to lather. :wink:Lovehound said:Castor contributes something that I haven't seen in any other popular base oil: ricinoleic acid. I haven't checked that no other oils have it, but of the oils I stock only castor has ricinoleic. I believe this fatty acid is responsible for castor's popular lathering and conditioning characteristics.
I generally soap between 6% & 9%, but I tried 10%, today. I won't go over that. It will be interesting to see how the bars turn out. Up to 9% has been okay, so far.Woodi said:I use 3 to 5% castor in my soap recipes. Beyond 10% the soap feels sticky to me. Castor is supposed to help retain scent in the soap too.