lisafrantz Posted September 30, 2013 Share Posted September 30, 2013 Hi, I'm just starting out with soap making and getting my supplies together for my first batch of cold process soap. Wondering if any pH test strips will work for testing the soap or if I need to buy ones specifically from a soap supplier? Thanks for your input.Lisa Quote Link to comment Share on other sites More sharing options...
MarieJeanette Posted September 30, 2013 Share Posted September 30, 2013 Welcome to the world of soap-making! :smiley2:Just a heads-up on strip-type testers- generally speaking, they are not very accurate when it comes to testing the pH of bar-type soap. They are oftentimes known to give false readings that can be off as much as 2 to 3 units. That's because soap is a surfactant, and surfactants don't interact well with the indicator chemicals on the strips. Having said that, though, there is one brand of strips I know of that is heads and tails above the rest, and if you are going to purchase any, I'd look no further than these: http://www.lotioncrafter.com/ph-fix-indicator-strips.html Here is an excellent article regarding the testing of soap pH that also makes mention of the above-linked strips and how to use them: http://www.millersoap.com/phtome.htmlAs for myself, to tell if my soaps are safe to use, I just apply the tongue-test instead of using test strips. It's quick, simple, accurate, and best of all, it doesn't cost me anything. lol If I were to ever use strips, though, the ones in the above link would be the ones I'd buy. Quote Link to comment Share on other sites More sharing options...
Moody Glenn Posted September 30, 2013 Share Posted September 30, 2013 Hello! I agree with Marie's excellent response. In fact, when I started to make soap I obtained pH test strips (the cheap kind) and all they are doing is taking up a small amount of space and gathering dust. Soap, when properly made, is very alkaline and, like Marie states, just be concerned about excess lye being present and carefully using the "zap test" (tip of tongue test). Accurate pH testing is better applied to making lotions and other leave-on skin applications. Quote Link to comment Share on other sites More sharing options...
lisafrantz Posted October 1, 2013 Author Share Posted October 1, 2013 great, thank you both! Quote Link to comment Share on other sites More sharing options...
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