I know about the Zap method but have never used it. I've used Phenolphthalein to test for excess lye for the past year of liquid soap making. Taking a small amount of soap and mixing with boiled and hot distilled H20, cooling it, and then testing with a few drops of Phenolphthalein. If it's pink or fuchsia I know need to add more neutralizer (I use citric acid). It's a trial and test method that takes several tests to get a clear no pink test.
What I've been concerned with is going too far below whats considered natural soap and I've had some separation I believe due to this issue.
What do you all do? Any thougts?
Thank you!
Frank
What I've been concerned with is going too far below whats considered natural soap and I've had some separation I believe due to this issue.
What do you all do? Any thougts?
Thank you!
Frank