Reply to thread

Not Steve, but I use the "Lasting" quality too. It can be found in soapee.com but not in soapcalc. This number is the total % of palmitic and stearic acids. You can get this number by adding Stearic + Palmitic or by subtracting Hardness - Cleansing. Since these fatty acids make soap that is not very soluble in water, this number is a rough indicator of how long a bar will last when in use. Other factors affect longevity too, such as the amount of cure time (young soaps don't last as long) and additives, so this number is not the be-all, end-all of this matter. But it's a rough start.