Liquid Castile Soap Progress


Liquid Castile Soap

Liquid Castile Soap! What a process…

I cooked it for 6 hours instead of the 3 to 4 the tutorial said. I was waiting for the stages I was supposed to see, and I still didn’t see all of them. But when I finally tested it to see if it was translucent, it was. So I assume it is done.

The soap-paste sat all night in distilled water to dissolve, but it didn’t. This morning, I ran it through the Vita-Mix on low speed in small batches to break up the very sticky clumps of soap-paste. Then I added more boiling distilled water to finally dissolve all the little clumps. They dissolved in another hour or two. I’ve got more than a gallon, for sure.

The final step remaining is to neutralize the KOH (Potassium Hydroxide) excess, which is about 10%. I don’t want to rely on the “about this much” method that the recipe uses. Instead, I will wait for Jeff, our resident chemist, to help me figure out exactly how much borax in solution I need to neutralize 1.16 ounces of KOH excess. He told me on the phone this morning that we’d have to do conversions involving ounces, grams, moles and possibly g/moles. I have a smidge of understanding, but no real idea of what to do. ;) So I’ll wait for him, unless I can find a handy-dandy table on the internet somewhere to just give me the answer.

That’s that. It looks good, it smells good and I think pretty soon I can call it a success. I hope. ;)


  1. Hello dear Wardee! :mrgreen:

    How does the soap look now? I’m glad you were able to get the ingredient you needed to make this liquid soap. I wouldn’t mind making my own liquid as well, as we have a liquid hand dispenser attatched to the wall in the bathroom. (got it at Lowes) It looks like one of those that you see in public bathrooms. Were you pleased enough with the result to want to make it again?

    Have a wonderful weekend with your family! Hugs & Love, Robin

    The soap is great! I am pleased with the experience. It requires far more patience than bar soap. It took 2 days and was very hard to work with at times. The good news is — I ended up with 1-1/2 gallons. I will write down my recipe for you soon. It didn’t proceed exactly like the tutorial, but with your incredible depth of soap making experience, I know you will do very well. You have a wonderful weekend, too! Love, Wardee

  2. Hi! I know this is an old post, but I am curious if you have found a tried and true liquid soap recipe you could share? I am SO excited to try making it! (BTW I have found your spray cleaner handy.) Thanks!

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