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How to Make Homemade Liquid Soap

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Mix the Lye-Water Solution and the Oils for the Liquid Soap
Oils and Lye Blending

Oils and Lye Blending

David Fisher
Another major difference with liquid soap is that that it is a "hot process" soap - instead of relying on the heat generated by the saponification process, heat is added using a double boiler, oven or crock pot. This recipe can be done in a double boiler or the oven, but I prefer using a crock pot. It keeps everything in one pot and lets it cook evenly without having to monitor the water in a double boiler. (The crock pot I use is a Rival Crock Pot and I like it a lot.)

But let's get down to soap making.

Measure out your oils and put them in the crock pot on low. You want this mixture to be at about 160 degrees (give or take 10) throughout.

While the oils are heating up, mix your lye-water, using the standard lye-making procedure. If you've never used potassium hydroxide before, don't be alarmed. It's a bit more volatile in the water than sodium hydroxide - it makes this odd boiling/groaning sound as it's dissolving. This is normal.

When the lye-water is completely mixed and clear, slowly add it into your oils. (No, you don't need to wait until it is cool.) Don't turn the stick blender on just yet...just stir the oils and lye together.

Then, like in cold process soap making, start blasting it with the stick blender. At first it will seem to want to separate. Keep blending.

Related Video
How to Get 'Trace' in Soap Making
How to Safely Make Lye Solution for Soap

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