I have a great love of salt bars and I have been wanting to try a brine soap. Soleseife is a German soap made from salt water and coconut oil, also known as Brine Soap or Salt Water Soap the salt makes for a smooth extremely hard bar of soap. The only difference between this and a salt bar is I am dissolving the salt into the water before I add the lye, I am using 80% coconut oil, 15% olive oil and 5% Sunflower oil with a 10% superfat. I added Breton sea salt at 25% of the water weight. I will split the batch once emulsified and fragrance is added and then add Bentonite clay to half and rose clay to the other. I expect this to have much of the same behavior as salt bars and harden quickly. I will use individual molds. because trying to cut a bar of this is just asking for disaster. This type of soap is ideal for using delicate soap molds.
This recipe can be fiddled around with a bit, just make sure it is properly recalculated with a soap calculator. Coconut oil is one of the only oils that can lather is salt water. However you want to keep the coconut oil content above 50% and superfat high, at a 10-20% range so that it is not drying. Clay usually makes for small bubbles so if you want big bubbles you would want to leave out the clay. I scented this batch with ‘bite me’ from Nature’s Garden.
If you are looking for an exfoliating bar of soap you can add the salt at trace instead of dissolve it, here is a link to a salt bar recipe.