Digital pH meter

[Biglou13]

i trust the zap test.
But u have a digital pH meter do they work
Will be making first batch this weekend

 

[Susie]

You have to have a meter you can calibrate, and how to calibrate it. You also have to dilute the soap properly. It is not enough just to stick the meter in.

Why are you so concerned about pH? If you are thinking you are getting away without zap testing, you won't. You need to know if the soap is safe, not what the pH is. Zap test tells you that, not the pH meter.

 

[Biglou13]

You have to have a meter you can calibrate, and how to calibrate it. You also have to dilute the soap properly. It is not enough just to stick the meter in.

Why are you so concerned about pH? If you are thinking you are getting away without zap testing, you won't. You need to know if the soap is safe, not what the pH is. Zap test tells you that, not the pH meter.

I trust the zap test !
just curious if meter works ( think toys)
Wouldn’t dilution change pH and what is proper dilution

It’s sounding easier just to do zap test

 

[DeeAnna]

The dilution often used is 1% to 10% pure soap by weight in distilled water. But Susie's right.

If you want to use a pH meter to do the equivalent of a zap test, learn how to do the test for excess alkalinity.

 

[lsg]

I mostly use my pH meter when making formulas with surfactants.

 

[Cellador]

I have a pH meter and I've tested my soap before, just to see...but it would be much more convenient to use the zap test to see if it's lye heavy.

 

[earlene]

I like toys, too. But if they are expensive and I wouldn't need them very often, I try not to spend the money. Still, I do like toys, so sometimes need and frequency of use doesn't factor in, so much as 'I just want that for the fun of it.' So I do get where you are coming from.

As lsg says, it may be useful, particularly if you make cosmetics and utilize surfactants or preservatives.