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How to Make Oven Process Liquid Soap

By David Fisher, About.com

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Getting Started Making Oven Process Liquid Soap

Oven Process liquid soap setup

Liquid soap setup

David Fisher
Making your own natural liquid soap is not too much more complicated than making bar soap. The equipment is pretty much the same - pitchers, spoons, a pot, a stick blender etc. The ingredients are pretty much the same too - oils and lye, water and fragrance. The two main differences in liquid soap from bar soap are:
  1. The type of lye you use is different. In bar soap you use sodium hydroxide, with liquid soap you use potassium hydroxide. It's the potassium hydroxide that makes the liquid soap possible.
  2. Making liquid soap is a "hot process" soap - meaning rather than letting it sit overnight while the saponification process works (a cold process = no heat added), you add heat to it in some manner. When I first started making liquid soap, I made it in a crock pot. If you don't have a crock pot, or don't have one big enough for a batch of soap, you can just put your soap pot in the oven. Like the slow, low heat of the crock pot, a low setting on your oven will cook the soap paste really well.

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