Lemon and Raw Lye Soap

I’ve gotten too big for my soap britches.

I was so proud of my shea butter success that I set out to invent another soap the very next day. I thought I’d make a nice fresh lemon zest soap.

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Since I was already winging it with the lemon zest, I decided to stick to an oil ratio from my book: 21 oz olive oil, 10.5 oz coconut oil, and 1 oz castor oil combined with 4.8 oz of lye and 10 oz of water.

I mixed it all together and blended it to trace. Then I added a handful of lemon zest.

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I’m choosing to believe that the lemon zest was my downfall. I don’t have any actual proof, but this is my first batch to go wonky and the zest is the only new variable. My heart tells me that adding the very acidic zest threw off the careful balance of base and oil and messed up its saponification.

But I can’t help but remember my coffee soap, in which I replaced all the water with decidedly acidic black coffee. While it didn’t smell amazing, that batch turned out fine. And I’d even used the same olive/coconut/castor oil recipe…

I suppose it’s possible I just measured something wrong.

Whatever the cause, the stuff never neutralized. After the two hours that always does it for a two pound recipe, I dropped a little Phenolphthalein in and got the bright pink that meant it was still basic.

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I gave it another half hour. And another. And another. At that point I decided it just wasn’t going to happen. On top of not testing neutral, the batter was runny, much more like cold than hot process. I mixed in the rest of my zest, poured the stuff out into a loaf mould and left it overnight.

The next day I turned out something that could easily pass for an olive loaf. On the left edge you can see a hot pink streak of Phenolphthalein.

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I’m totally prepared to find that it can’t be salvaged, but I don’t want to give up just yet. I sliced the loaf into bars that are actually pretty pleasant looking. I’ll leave them open to the air in the basement – with any luck they’ll cure just like a cold process batch. I’ll just have to wait and see.

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To make matters worse, my beloved shea butter concoction is not really holding up under the pressure of being soap. It does lather, but only with some serious scrubbing. And when it dries it fills with fissures that don’t exactly evoke visions of moisturized skin.

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But hey, at least it’s not caustic.

 

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2 thoughts on “Lemon and Raw Lye Soap

  1. You may have to rebatch it if it’s honestly too caustic and needs more cook time (and possibly a little more oil?). You should be able to find instructions online on how to rebatch a loaf, but I usually just run the slices through the food processor and put in a pan with just enough water to cover then cook till neutral.

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