I received a challenge from a customer this summer. She asked if I could try making a grapefruit soap scented with essential oil. I've used it in the past and the scent utterly vanished after a month or so. I did some research and asked other soapers for advice and this is what I came up with for my second attempt. 1) Clays and/or cornstarch in the soap will help the scent to "stick." 2) A touch of other essential oils, like benzoin, litsea cubeba (may chang), and patchouli may also up the "stick" factor. I'm not quite certain about the actual definition of "sticking"--does that mean the scent remains the same strength as when added, or to a lesser degree? I would be happy with even a faint grapefruit-y smell. As suggested, I mixed the essential oil with the clay and cornstarch before adding it to the soap mixture. I didn't discount the goat milk at all because I was afraid a lot of the liquid might be a...
life in and out of the soap studio