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Stearic Acid in Soap


brempel
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I've experimented with free stearic acid but I don't use it in any of my normal recipes. There are people who do. In principle it's perfectly OK to add a few percent and it will harden the recipe.

Personally, it wouldn't be at the top of my recommendations for CP recipes. Almost all recipes have some stearic acid in them because it's found in many oils. However, stearic in the form of an oil saponifies more slowly than free stearic acid. In many cases there's no advantage to speeding up trace. A slower recipe gives you more time to swirl and do other stuff, and makes it easier to use fragrances that move fast.

There's nothing you can do with stearic acid that can't be accomplished by simply adjusting the oils in your recipe to make a harder bar.

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There's nothing you can do with stearic acid that can't be accomplished by simply adjusting the oils in your recipe to make a harder bar.

I agree wholeheartedly! I love being a "soap chemist" -- to be able to adjust certain oils in your formulation to come up with a perfect bar of soap or according to your preferences.

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