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Bar with some KOH

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jnl

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I make 100% CO stain sticks with 0% superfat. But I dont like how hard it is. If I add some KOH, i figure that will soften the bar a bit, which will make it easier to cut, and easier to use. But I still want a totally solid bar, not dentable at all.

How much KOH should I use? I have made liquid soap, and regular soap, but I have never combined KOH and NaOH in a recipe before.

Should I start by doing a 90/10 NaOH/KOH split, or should it be more like 60/40? 80/20? Where is a good place to start a test batch at?
 

IrishLass

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Should I start by doing a 90/10 NaOH/KOH split, or should it be more like 60/40? 80/20? Where is a good place to start a test batch at?
If it were me, I would start with a 90/10 NaOH/KOH split. A 60/40 split would be way too much. I make a shave soap with a 60/40 split and although firm enough to keep its shape, it is as pliable/smooshable as clay when pressed.

As for your 100% CO liquid soap, here are 2 simple things I have tried in the past that have worked for me with liquid soap dilutions that came out too thin: 1) Heat the diluted soap over low heat with the cover off to evaporate some of the water off; or 2) Add more paste to the dilution (if I still had some on hand).

I've never tried adding NaOH to liquid soap, but hopefully those that have will chime in soon.


IrishLass :)
 
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jnl

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a bar soap with a little bit of KOH has to be hot processed, right?
does it need to be cooked longer than a full NaOH batter?
will it behave the same - turn to gel, then zap test and no zap?


thanks!
 

Susie

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(This reply is not about liquid soap, just to explain why HP not necessary for KOH added to bar soap.)

I make CP liquid soap, so I don't see why you would have to HP NaOH/KOH bar soap.
 

The Efficacious Gentleman

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Aye, there are enough examples of people getting the wrong lye delivered and making soap as usual, only to find it staying runny in the mould.
 

jnl

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(This reply is not about liquid soap, just to explain why HP not necessary for KOH added to bar soap.)

I make CP liquid soap, so I don't see why you would have to HP NaOH/KOH bar soap.

ok
i read somewhere that KOH needed to be cooked.
it was on a shaving soap thread somewhere where they were adding in a little KOH to their hard bar to increase lather.
 

snappyllama

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I'll bet that the reason the shaving soap recipe you saw had to be HPed was that it had a bunch of stearic acid in it.
 

jnl

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they had specifically said it had to be cooked because of the KOH
but lots of people say things that are wrong.
i dont remember where i saw it cause i had read through TONS of stuff all over the web that day
but i didnt think it was right because i had read the CPLS stuff before.
 

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