Liquid Soap in 30 minutes

[Mary-Jane]

How to you test for the ph in your liquid soap? Also when making at what point do you test it? Do you need a preservative? Thank you.

 

[Zany_in_CO]

How to you test for the ph in your liquid soap?

http://alaiynab.blogspot.com/2015/05/ph-testing-of-liquid-soap-and-lowering.html

Also when making at what point do you test it? Do you need a preservative?

http://alaiynab.blogspot.com/2014/12/liquid-soap-faqs.html#more