- Jan 8, 2016
- Reaction score
Hello, has anyone studied the pH in their soap from the day made throughout the curing process? I just started monitoring mine with a calibrated electronic pHmeter. I was assuming I would have a curve going downwards, since the reaction of lye and oils would cause the pH to tend more to neutral, but instead I got this, each color is a different type of soap, the X axis is the time (in days), the Y axis is the pH. I can't understand the sudden jumps! So I am not sure if the method I am using to meassure is not right, if this behavior is normal or if there could be other things affecting the reaction? Thanks for any light you can throw on this!!